DEV Community: Hamza Ibrahim

Looking for a Final Round AI Alternative for Actual Interview Practice? Here's What I'd Use

Hamza Ibrahim — Fri, 23 Oct 2026 14:00:00 +0000

If you searched for a Final Round AI alternative, it's worth being clear about what you're replacing. Final Round AI's main product is Interview CoPilot, which, in its own words, "listens to your live interview and delivers real-time answers in a private window only you can see." Its practice mode, Practice Interview, now lives inside Interview CoPilot and needs a paid plan. The homepage advertises Pro from $25 a month, and what you pay depends on the billing period and the current offer. The free plan has no practice interviews.

If what you actually want is to get better at interviews, here's what I'd use instead. I built one of these, DevInterview.AI, so I've marked it. Every price comes from the vendor's own site, checked on October 19, 2026.

The options

Option	What it is	Price as billed
DevInterview.AI (mine)	Live voice mock interviews: coding, system design, behavioral	First interview free; $19.99/mo, $49.99/qtr, $99.99/yr
interviewing.io	A free AI Interviewer, or a human mock with an experienced engineer	AI Interviewer free; human sessions from $179
Peer mocks on Aced (formerly Exponent)	Another candidate interviews you, then you swap	Free, 5 a month
Yoodli	AI roleplays that coach how you sound	5 free sessions total; Pro $8/mo, Advanced $20/mo, billed yearly
ChatGPT voice mode	A general assistant you can prompt to act as an interviewer	Free plan has limited voice chats; Plus $20/mo

DevInterview.AI: practice is the whole product

DevInterview.AI runs unlimited live voice mock interviews: a 30-minute coding round in an editor that runs your code, a 45-minute system design round on a canvas, and a 30-minute behavioral round. Coding and system design are set to your target company and level, behavioral to your level. The interviewer talks, asks follow-ups and pushes back, and every round ends with a scored report and a hire verdict. It doesn't run during your real interview. That's on purpose.

The first interview is free, no card. Unlimited interviews are $19.99 a month, $49.99 a quarter or $99.99 a year. Every rating it has ever received is public on its reviews page.

Where it falls short: it has no resume tools or job search features, and the interviewer is an AI, not a person who runs real hiring loops.

interviewing.io: free AI, or a human when it counts

Its AI Interviewer is free and, per its site, runs coding and system design interviews in the style of a FAANG mock, with feedback at the end. When you want an experienced human, sessions start at $179. One of those in the last week before an onsite is worth it if you can afford it.

Peer mocks on Aced (formerly Exponent)

Free accounts get 5 peer mock interviews a month. You're matched with another candidate and you take turns interviewing each other. Every session needs scheduling, but it's real practice with a real person, for free.

Yoodli: for how you sound

If your problem is rambling or rushing rather than the content, Yoodli's AI roleplays give feedback on delivery, clarity, pacing and effectiveness. It's a communication coach, not a technical interviewer.

ChatGPT voice mode: the free starting point

You can prompt it to act as an interviewer, give you a problem and push back. That's a fine start. The structure, the follow-ups and any scoring are whatever you set up yourself.

A note on copilots

Using hidden help during a live interview breaks most companies' interview rules, and if you get the offer, you still have to do the job. Practice is slower, but it's the version that still works in the onsite and on the job.

Where this fits

If you're starting from scratch, my 8-week study plan gives one tool per step: NeetCode for patterns, Hello Interview for system design, DevInterview.AI to practice out loud, and an optional session with a human interviewer.

Prices checked on each vendor's own site on October 19, 2026. The full comparison, with sources, is on devinterview.ai.

Staff-Level System Design Interviews: What Changes From Senior, and How I'd Prepare

Hamza Ibrahim — Thu, 22 Oct 2026 14:00:00 +0000

At senior and staff level, the system design round is usually the one that sets your level, and it's graded on judgment, not vocabulary. The interviewer already assumes you know what a cache is. They want to hear why you picked the consistency model you did, what breaks first at ten times the load, and how you'd run the thing at 3 a.m.

Here's what changes at each level, and how I'd prepare. I built one of the tools below, DevInterview.AI, so I've marked it. Every price comes from the vendor's own site, checked on October 19, 2026.

What changes at senior and staff

The deep dive decides it. A mid-level candidate passes with a reasonable high-level design. A senior candidate is expected to pick the hardest component and go deep: the data model, the failure modes, the numbers.
Every choice needs a why. "I'd use Kafka here" is a mid-level answer. "I'd use a log here because consumers need replay, and here's what that costs us in ordering" is a senior one.
Scale and operations aren't optional. Estimates, hot keys, backpressure, and what the on-call page looks like.
Staff adds scoping and leadership. Staff prompts are often deliberately vague. You're scored on how you narrow the problem, which trade-offs you raise before you're asked, and whether you drive the conversation instead of waiting for prompts.

The round is usually 45 to 60 minutes, so the real skill is doing all of that out loud, under a clock, while someone interrupts you. Reading won't build that; practicing out loud will.

What I'd use

Resource	Best for	Price as billed
Hello Interview	The clearest written guidance on what a senior answer sounds like, plus AI mock interviews	Premium $59 (1 month), $119 (1 year), $399 lifetime; AI interviews $25 each; sale running when I checked
DDIA and Alex Xu's System Design Interview books	The fundamentals under every answer	Book price, no subscription
DevInterview.AI (mine)	Spoken system design rounds at senior or staff level, on demand	First interview free; $19.99/mo, $49.99/qtr, $99.99/yr
interviewing.io	One read from a senior, staff or principal engineer	From $179 a session
DesignGurus	A 60-minute human system design mock with a FAANG+ or target-company interviewer	$159 (list $199); $215 for a target-company interviewer (list $269)

Learn it: Hello Interview and two books

Hello Interview's guides are the clearest explanation I've read of what separates a mid-level answer from a senior one, with company guides by level. Premium adds Guided Practice, which walks you through design problems step by step with instant AI feedback. Hello Interview now also runs Live Practice: a 35-minute system design interview out loud on a shared whiteboard, with an AI interviewer that asks follow-ups and ends with a hire or no-hire call for your target level. Premium includes 1 with a month of access, 2 with a year and 4 with lifetime, or you can buy them on their own at $25 each at list price, with a sale running when I checked. Their human mock interviews ended on May 31, 2026.

Martin Kleppmann's Designing Data-Intensive Applications is the book senior interviewers quote back at you. Read the chapters on your weakest areas, not the whole thing. Alex Xu's System Design Interview, volumes 1 and 2, is the shortest route to the standard designs and numbers.

Practice it out loud: DevInterview.AI

DevInterview.AI runs a 45-minute live voice system design interview on a canvas, set to your target company and level, as many times as you want. At every level the interviewer challenges your choices as you make them. At staff, it expects you to drive the whole session: scope the requirements yourself, go deep on more than one component when time allows, and defend your trade-offs and failure modes under harder questions. Every session ends with a scored report that points at specific moments, and a hire verdict.

The first interview is free, no card, and unlimited interviews are $19.99 a month. The yearly plan ($99.99) includes a free 30-minute 1:1 call with a senior big tech engineer. Every rating it has ever received is public on its reviews page.

Where it falls short: the interviewer is an AI, not a staff engineer's intuition, and our written system design material is thinner than Hello Interview's.

Calibrate it: one human session

interviewing.io runs anonymous mocks with senior, staff and principal engineers, from $179 a session, with the price varying by subject and whether you want an interviewer from a specific company. DesignGurus sells a 60-minute mock with a FAANG+ engineer for $159 (list $199), or $215 (list $269) with an interviewer from your target company. One session in the final two weeks is enough. That's where you check the skill, not where you build it.

A 6-week plan

Weeks 1 and 2: fill the gaps, not the whole syllabus. Hello Interview's guides for your target companies, DDIA for your weak areas, and a one-page cheat sheet per building block with the trade-off it introduces.
Weeks 3 to 5: one full design out loud, most days. 45 minutes, a timer, a canvas and an interviewer that pushes back. Rotate prompts, and redo the ones where your deep dive fell apart.
Week 6: calibrate. One human session, then fix whatever it exposed. Rest the day before.

If you haven't interviewed in years or you're moving up to a staff loop, stretch it to eight weeks by doubling weeks 1 and 2.

Where this fits

This covers steps 2 and 3 of my 8-week study plan: NeetCode for patterns, Hello Interview for system design, DevInterview.AI to practice out loud, and an optional session with a human interviewer.

Prices checked on each vendor's own site on October 19, 2026. The full guide, with sources, is on devinterview.ai.

How to Practice Behavioral Interviews With AI: A Software Engineer's Guide (2026)

Hamza Ibrahim — Wed, 21 Oct 2026 14:00:00 +0000

The fastest way to fail a behavioral interview is a vague story. "We migrated the service and it went well" sounds fine when you read it back to yourself. It falls apart the moment an interviewer asks, "What did you personally do?"

That's why I'd practice behavioral rounds out loud, with something that asks follow-ups. Here's how the AI options compare. I built one of them, DevInterview.AI, so I've marked it. Every price comes from the vendor's own site, checked on October 19, 2026.

The options

Tool	Best at	Price as billed
DevInterview.AI (mine)	A full 30-minute behavioral round for software engineers, with follow-ups and evidence-based scoring	First interview free; $19.99/mo, $49.99/qtr, $99.99/yr
Yoodli	How you sound: delivery, clarity, pacing	5 free sessions total; Pro $8/mo, Advanced $20/mo, billed yearly
Big Interview	A structured video course for any job, with playbooks by career stage	$39 per 30 days, $99 per 3 months, $299 lifetime
Hello Interview	Self-paced practice, from one question to a full 5 to 6 question round	$59 (1 month), $119 (1 year), $399 lifetime; sale running when I checked
ChatGPT voice mode	Free drilling, if you set up the structure yourself	Free plan has limited voice chats; Plus $20/mo

DevInterview.AI: a full round that keeps asking

This is the one I built, so weigh that. You pick your level, junior through staff, and a target company. The questions are written for your level, and the interviewer plays a hiring manager at that company. It asks five questions in about 30 minutes, and when an answer stays general, it digs in the way real interviewers do: what did you personally do, and what happened as a result?

The report scores five competencies: leadership, conflict, ownership, problem solving and collaboration. Each score has to cite something you actually said, and it checks for the three things behavioral rubrics look for: a specific incident instead of a summary of your role, your own actions instead of the team's, and a concrete result.

The first interview is free, no card, and unlimited interviews are $19.99 a month. Every rating it has ever received is public on its reviews page.

Where it falls short: it's built for software engineering roles only, and it doesn't coach pacing or body language.

Yoodli: if your stories hold up but you ramble

Yoodli is an AI communication coach. You run roleplays by video, chat or with an AI avatar, with follow-up questions, and it gives feedback on delivery, clarity, pacing and effectiveness. It's sold mostly for workplace communication, and its pricing page lists interview prep as one use. Starter is free for 5 sessions in total; Pro is $8 a month and Advanced is $20 a month, billed yearly.

Big Interview: a course for any job

Expert-led lessons plus video-based practice questions, with feedback on your delivery, body language and content. It covers every kind of job, with playbooks for every career stage from new grads to senior executives. $39 per 30 days, $99 per 3 months, or $299 for lifetime access.

Hello Interview: self-paced practice

Its behavioral practice, part of Guided Practice, can read questions aloud, asks follow-up questions and gives instant AI feedback after every answer, in sessions from one question up to a full 5 to 6 question round, with an optional target company and level. Premium is $59 for 1 month, $119 for 1 year or $399 lifetime, with a sale running when I checked, and none of the plans auto-renew.

ChatGPT voice mode: free, if you do the structuring

Give it your level and the role, ask for one question at a time, and tell it to push back when an answer is vague. That works for drilling. It won't run a structured round for your level or score your stories against a rubric unless you script all of that yourself.

A routine that works with any of these

Write 6 to 8 real stories that cover leadership, conflict, ownership, a failure and collaboration.
Say each one out loud without notes, and time it. Two to three minutes is the target.
Run a full mock with follow-ups. Follow-ups are where vague stories fall apart, so that's where the practice pays off.
Rewrite your weakest story with a specific incident, your own actions and a number in the result. Then run it again.

Where this fits

Behavioral rounds are one part of step 3 in my 8-week study plan, which gives one tool per step: NeetCode for patterns, Hello Interview for system design, DevInterview.AI to practice out loud, and an optional session with a human interviewer.

Prices checked on each vendor's own site on October 19, 2026. The full comparison, with sources, is on devinterview.ai.

FAANG Interview Prep in 2026: The AI and Human Tools I'd Use for One Specific Company

Hamza Ibrahim — Tue, 20 Oct 2026 14:00:00 +0000

Generic prep works until about a month out. After that, the question changes from "am I good at coding interviews?" to "am I ready for Google's?" Each big company asks its own mix of problems, at its own bar for each level, in its own format.

Here's how I'd prep for one specific company, with the tool I'd use for each step. I built one of them, DevInterview.AI, so I've marked it. Every price comes from the vendor's own site, checked on October 19, 2026.

The tools

Tool	How it's company-specific	Price as billed
LeetCode Premium	Questions tagged by company, with how often they come up; timed company tests	$35/mo (list $39), $159/yr
Hello Interview	Company guides by level, and questions candidates reported	$59 (1 month), $119 (1 year), $399 lifetime; sale running when I checked
DevInterview.AI (mine)	Unlimited voice mock interviews set to your target company and level	First interview free; $19.99/mo, $49.99/qtr, $99.99/yr
interviewing.io	A mock with an interviewer from your target company, on request	From $179; price varies for a company-specific interviewer
IGotAnOffer	Coaches who are calibrated interviewers for that company and role	$50 a credit, 2 to 5 credits an hour

Step 1: Learn what the company actually asks

Company tags tell you which patterns come up more often, not which exact question you'll get. Use them to aim your drilling, not to memorize.

LeetCode Premium's company tags and timed company tests are still the standard question list. Hello Interview's guides walk through the process at each level, like its Google L4 guide. For a free version, every company on DevInterview.AI has a public profile showing the topics and difficulty it asks most.

Step 2: Run that company's round out loud, many times

This is the step most people skip. They drill the questions in silence, then walk into an interview where they have to explain every step to someone who keeps asking questions.

DevInterview.AI, which I built, lets you set every mock interview to a company and your level, junior through staff. For coding, the interviewer uses that company's tagged questions, 1,800+ for Google and 1,600+ for Amazon, in an editor that runs your code, and asks follow-ups the way a real interviewer does. System design runs 45 minutes on a canvas, with problems chosen to fit the company. For behavioral, the questions are set to your level and the interviewer plays a hiring manager at that company. Every round ends with a scored report and a hire verdict.

It's unlimited for $19.99 a month, and the first interview is free, no card. In the last two weeks, you can run your target company's round every day for less than one human session. Every rating it has ever received is public on its reviews page.

Where it falls short: it's an AI, not someone who has sat on that company's hiring committee. And for smaller companies without enough tagged questions, coding falls back to questions for your level.

Step 3: One human read from someone who knows the company (optional)

interviewing.io can match you with an interviewer from your target company. Sessions start at $179, and per its FAQ the price varies with the subject and whether you want an interviewer from a specific company.

IGotAnOffer lets you pick a coach who's a calibrated interviewer for that company and role, like its ex-Google interviewers. A credit is $50, and coaches charge 2 to 5 credits for a one-hour session, so roughly $100 to $250.

Do this once, in the final week or two, after you've done your reps. It's a calibration check, not where you build the skill.

What about Aced (formerly Exponent)?

Aced organizes its guides, reported interview experiences and coaches by company, and free accounts get 5 peer mock interviews a month. Its AI mock interviews come with the Expert plan ($99/mo, or $20/mo billed yearly), and its FAQ describes them as 10 to 20 minute audio sessions on common behavioral and product management questions, with no live coding.

Where this fits

If you're more than a month out, start with my 8-week study plan instead: NeetCode for patterns, Hello Interview for system design, DevInterview.AI to practice out loud, and an optional session with a human interviewer.

Prices checked on each vendor's own site on October 19, 2026. The full comparison, with sources, is on devinterview.ai.

The Best interviewing.io Alternatives in 2026, Sorted by Budget (Prices Checked)

Hamza Ibrahim — Mon, 19 Oct 2026 17:49:52 +0000

interviewing.io is the gold standard for one thing: a mock interview with an experienced engineer who has run real interviews. Sessions start at $179. The catch is that interviewing is a volume skill, and at $179 a rep, volume is exactly what you can't afford.

So here's how I'd replace it at every budget. I built one of the tools below, DevInterview.AI, so I've marked it. Every price comes from the vendor's own site, checked on October 19, 2026.

The short list

Alternative	What you get	Price as billed
interviewing.io's AI Interviewer	Their own free AI interviewer for coding and system design	Free
Peer mocks on Aced (formerly Exponent)	Another candidate interviews you, then you swap	Free, 5 a month; Pro $79/mo or $12/mo billed yearly
DevInterview.AI (mine)	Unlimited live voice mock interviews: coding, system design, behavioral	First interview free; $19.99/mo, $49.99/qtr, $99.99/yr
DesignGurus	A 60-minute system design mock with a FAANG+ engineer	$159 (list $199); $215 with a target-company interviewer (list $269)
IGotAnOffer	A coach who's a calibrated interviewer for your target company and role	$50 a credit, 2 to 5 credits an hour

If your budget is zero

Start with interviewing.io's own AI Interviewer. Per its site, it runs coding and system design interviews in the style of a FAANG mock, with feedback at the end, for free. The site doesn't say whether it talks or runs your code, so try one and see how it fits.

Then add peer mocks on Aced (formerly Exponent), which is where Pramp's sessions moved. You're matched with another candidate, you interview each other, and you trade notes. Free accounts get 5 a month.

The catch: your interviewer is another candidate, and every session needs scheduling.

If you can spend $20 a month

This is the gap I built DevInterview.AI for. It runs unlimited live voice interviews: a 30-minute coding round in an editor that runs your code, a 45-minute system design round on a canvas, and a 30-minute behavioral round. Coding and system design are set to your target company and level, behavioral to your level, and each round ends in a scored report with a hire verdict. The interviewer talks, asks follow-ups and pushes back on your choices, and it won't hand you the solution.

The first interview is free, no card. After that it's $19.99 a month, and a full year at $99.99 costs less than one interviewing.io session. Every rating it has ever received is public on its reviews page.

Where it falls short: it's an AI, not a senior engineer who has sat on hiring committees.

If you want a human for less than $179

DesignGurus sells a fixed-price 60-minute system design mock with a FAANG+ engineer: $159 (list price $199), or $215 (list $269) with an interviewer from your target company. If system design is the round you're worried about, the $159 mock gets you a human expert for less than one interviewing.io session.

IGotAnOffer lets you pick a coach who's a calibrated interviewer for the company and role you're interviewing for. A credit is $50, and coaches charge 2 to 5 credits for a one-hour session, a 45-minute mock plus 15 minutes of feedback, so roughly $100 to $250. At the low end that beats interviewing.io's price; at the high end it doesn't.

When interviewing.io is still worth it

In the last week or two before a real onsite, one session with an experienced interviewer, ideally from your target company, is worth the $179 or more if you can afford it. What isn't worth it is using $179 sessions to build a skill that takes dozens of reps. Do the volume cheaply first, then calibrate once.

Where this fits

Practicing out loud is step 3 of the plan I'd give a friend: learn the patterns on NeetCode, study system design on Hello Interview, practice out loud on DevInterview.AI, and, super optional, one human session on interviewing.io. The full 8-week version is here.

Prices checked on each vendor's own site on October 19, 2026. The full comparison, with sources, is on devinterview.ai.

Senior Engineer, Haven't Interviewed in Years? What Changed and an 8-Week Plan

Hamza Ibrahim — Thu, 15 Oct 2026 04:59:01 +0000

If you're a senior engineer who hasn't interviewed in six years, I'd plan on six to eight weeks of part-time prep, starting with one full mock interview in the round you feel least sure of, to see how much it has rusted. The coding round still looks much as you remember it. What changed is the tooling around it, and at senior level more rides on system design and on stories that show the scope of your work.

What changed

The practice tools moved. Pramp's free peer mocks are now part of Aced (formerly Exponent): Exponent acquired Pramp in November 2021, moved its sessions onto its own platform in July 2024, and renamed itself Aced in August 2026. Hello Interview wound down its human mock interviews on May 31, 2026.
AI interviewers arrived. You can rehearse a full interview at 11 p.m. without booking anyone.
AI may be in the room. Hello Interview now teaches a track it calls "AI Enabled Coding" and says Meta, Shopify, LinkedIn, Canva, Uber and others now sit you down with an AI assistant and a real codebase. Ask your recruiter whether your loop includes one, and practice the format they name.

What didn't change

Coding is still code. Amazon's SDE II prep page still asks for syntactically correct code, not pseudocode, written in real time.
Stories still decide a lot. Amazon tells SDE II candidates that each interviewer typically asks two or three behavioral questions about its Leadership Principles, framed with STAR.
You know more than you can show. What rusts is speed: spotting a pattern in minutes and explaining a design out loud in 45.

The 8-week plan

At 8 to 10 hours a week alongside a full-time job:

Week 1, diagnose: before studying anything, take one full mock interview at your target level in the round you feel least sure of. Spend more of the next weeks on whatever it flags.
Weeks 1 to 4, patterns: the NeetCode 150 by pattern, a few problems a day, out loud from the first one.
Weeks 2 to 6, system design: Hello Interview's free guides for the core concepts, then worked problems. Practice driving the design yourself: requirements, scale, and the tradeoffs you'd defend in a design review.
Weeks 3 to 6, stories: 8 to 10 stories from your recent work that show scope: a project you led, a conflict you resolved, a call you got wrong and fixed.
Weeks 5 to 8, full mocks: two a week, then most days in the final two weeks, mixing coding, system design and behavioral.
Week 8, super optional: one session with an experienced interviewer on interviewing.io, from $179, for a human read.

Practice at the level you're targeting

DevInterview.ai, which I built, runs interviews at three levels, Junior, Mid/Senior and Staff/Lead, and the level changes both the questions and the bar you're scored against. If you're unsure whether to aim for senior or staff, take one mock at each and compare the reports. System design runs 45 minutes on a canvas, set to your target company and level. The behavioral round asks five questions calibrated to your level, with follow-ups. First interview free, then $19.99 a month.

Where it falls short: the interviewer is an AI. You get repetitions and the same rubric every time, not the read of someone who runs hiring loops at your target company.

The tools, one per step

NeetCode for patterns (free list and videos; Pro $119/yr, list $199), Hello Interview for system design (free to start; Premium at list price $59 for 1 month, $119 for 1 year or $399 lifetime, with a sale running when I checked), DevInterview.ai to practice out loud, and, super optional, one interviewing.io session. The full plan is here.

Checked on each company's own pages on October 13 and 14, 2026. The full article, with sources, is on devinterview.ai.

How to Practice Coding Interviews Without a Partner (5 Options, Prices Checked)

Hamza Ibrahim — Thu, 15 Oct 2026 04:57:43 +0000

A practice partner gives you three things: a problem you haven't seen, follow-up questions (what's the complexity, what about an empty input, can you do better), and someone watching. Alone, the first is easy. The other two need someone, or something, on the other side.

Your options

Option	Asks follow-ups	Spoken	Feedback	Price as billed
Self-mock routine	No	You talk to yourself	You grade yourself	Free
DevInterview.ai (mine)	Yes	Live voice interviewer	Scored report with a hire verdict	First interview free; $19.99/mo, $49.99/qtr, $99.99/yr
interviewing.io's AI Interviewer	Not stated	Not stated	Feedback at the end	Free
ChatGPT voice mode	Not stated	Yes	Not stated	Free with daily limits; Plus $20/mo
Peer mocks on Aced (formerly Exponent)	Yes, from another candidate	Live	Notes from your partner	Free, 5 a month

1. The self-mock routine (free)

Pick a problem you haven't seen, at your level, like an untouched one from the NeetCode 150.
Set a timer for 30 to 45 minutes and don't pause it.
Talk the whole time: restate the problem, walk an example, state the brute force and its complexity, improve it, code it, test it by hand.
Record yourself. Listen back once and count the silences.
Grade four things: did you clarify the problem, state the complexity, test your code, and keep talking.

Its limit: nobody pushes back, so you never practice the follow-up question, which is where a lot of interviews are decided.

2. An AI interviewer that talks: DevInterview.ai

This is the one I built. It runs a 30-minute coding round in an editor that runs your code, in any of 7 languages, set to your target company and level. The interviewer talks, asks follow-ups, and is told never to say whether you're right and never to hand you the solution. Each interview ends with a scored report and a hire verdict. The same plan covers a 45-minute system design round on a canvas and a 30-minute behavioral round. First interview free, then $19.99 a month.

Where it falls short: it's an AI, not a person who runs real hiring loops, and it won't give you the nerves of a stranger watching.

3. interviewing.io's free AI Interviewer

Per its site, it runs coding and system design interviews in the style of a FAANG mock, with feedback at the end, for free. The site doesn't say whether it speaks or runs your code, so try a session and see.

4. ChatGPT voice mode

Tell it to act as an interviewer, give it a problem, and ask it to push back. Free with daily limits, Plus is $20 a month. OpenAI doesn't describe an interview mode or scoring, so the structure is whatever you prompt for.

5. Peer mocks, if a stranger counts

Aced (formerly Exponent) matches you with another candidate and you interview each other. Free accounts get 5 a month, and afterwards you trade notes using realistic rubrics, in Aced's words. Every session needs scheduling.

System design without a partner

Harder alone, because the interviewer's questions steer the design. DevInterview.ai's 45-minute system design round runs on a canvas and asks those questions. Hello Interview's Guided Practice walks you through the steps of an interview with personalized feedback; it comes with Premium, at list price $59 for 1 month, $119 for 1 year or $399 lifetime, with a sale running when I checked.

Where this fits

Practicing alone is step 3 of the plan I'd give a friend: learn the patterns on NeetCode, study system design on Hello Interview, practice out loud on DevInterview.ai, and, super optional, one human session on interviewing.io. The full 8-week version is here.

Checked on each vendor's own site between October 8 and October 14, 2026. The full article, with sources, is on devinterview.ai.

Solved 300 LeetCode Problems but Still Freeze in Interviews? It's a Rehearsal Problem

Hamza Ibrahim — Thu, 15 Oct 2026 04:56:16 +0000

If you've solved hundreds of LeetCode problems and still freeze in real interviews, you don't have a knowledge problem. You have a rehearsal problem. You practiced solving alone and in silence, and the interview tests solving out loud while someone watches.

Why 300 problems didn't fix it

A real interview adds three things solo practice never does: someone watching, explaining while you think, and a clock you can't pause.

A 2020 study by researchers at NC State and Microsoft tested exactly this with 48 computer science students. Half solved a problem on a whiteboard while explaining it to an interviewer who looked on. The other half solved it alone in a private room. The watched group performed half as well, with significantly higher stress and cognitive load.

The study didn't test practice. But in my view, solving more problems alone won't move that number, and practicing under the watched, spoken condition will.

Four drills

Narrate every practice problem. From the first read: restate the problem, walk an example, name the brute force and its complexity, then improve it. If talking makes you slower, good. That's the skill being trained.
Learn a script for blanking. Freezing isn't the failure. Silence is. When your mind goes blank, say what you know: restate the input and output, work a tiny example by hand, state the brute force even if it's slow, or ask a clarifying question.
Practice being watched. Full mock interviews, timed and spoken. Start them weeks before the interview, not the night before.
Repeat until it's boring. A full spoken mock most days in the final two to three weeks, ten or more in total, until the format stops feeling new.

Where to get the reps

Option	What you get	Price as billed
DevInterview.ai (mine)	Unlimited live voice mock interviews: coding with code that runs, system design, behavioral, each with a scored report	First interview free; $19.99/mo, $49.99/qtr, $99.99/yr
Aced (formerly Exponent) peer mocks	A live mock with another candidate, where you interview each other	Free, 5 a month
interviewing.io	An anonymous mock with an experienced engineer	From $179 a session
Narrating alone	Your voice, a timer and a recording to listen back to	Free

DevInterview.ai, which I built, gives you a voice interviewer on demand: a 30-minute coding round set to your target company and level, in an editor that runs your code. The interviewer asks follow-ups and is told never to say whether you're right and never to hand you the solution, so you practice working through being stuck instead of being rescued. Each interview ends with a scored report, so you can see whether the freezing is fading.

Peer mocks on Aced (formerly Exponent) put a real person across from you, which is good for live nerves. Free accounts get 5 a month. Every session needs scheduling, and part of it goes to interviewing your partner.

One interviewing.io session near the onsite gets you an experienced human's read. Use it to calibrate, not for volume.

Where this fits

Freezing is a problem with the practice step, not the study step. The plan I'd give a friend: learn the patterns on NeetCode, study system design on Hello Interview, practice out loud on DevInterview.ai, and, super optional, one human session on interviewing.io. With 300 problems behind you, step 1 is done. Keep a few problems a week and move most of your time to practicing out loud. The full 8-week version is here.

Prices checked on each vendor's own site on October 13 and 14, 2026. The full article, with sources, is on devinterview.ai.

The 8-Week Software Engineering Interview Study Plan I'd Give a Friend (4 Tools, One per Step)

Hamza Ibrahim — Thu, 15 Oct 2026 04:54:20 +0000

Here's the plan I'd give a friend, one tool per step: learn the coding patterns on NeetCode, study system design on Hello Interview, practice the interview out loud on DevInterview.ai, which I built, and, only if budget allows, book one session with a human interviewer on interviewing.io before the onsite.

Most plans stop after the first two steps. The interview tests the third: solving out loud while someone watches.

The stack

Step	Tool	What it does for you	Price as billed
1. Learn the patterns	NeetCode	The NeetCode 150, a curated list of 150 problems with free video solutions	Free to start; Pro $119/yr (list $199), $297 lifetime (list $599)
2. Study system design	Hello Interview	System design guides built by FAANG hiring managers and staff engineers	Free to start; Premium $59 (1 month), $119 (1 year), $399 lifetime, with a sale running when I checked
3. Practice out loud	DevInterview.ai	Unlimited live voice mock interviews: coding with code that runs, system design on a canvas, behavioral, each with a scored report	First interview free; $19.99/mo, $49.99/qtr, $99.99/yr
4. Super optional: one human read	interviewing.io	An anonymous mock interview with an experienced engineer	From $179 a session

Step 1: Learn the patterns on NeetCode

Work through the NeetCode 150 by pattern, not at random: arrays and hashing, two pointers, sliding window, stacks, binary search, linked lists, trees, tries, heaps, backtracking, graphs, dynamic programming, greedy, intervals, math and geometry, and bit manipulation. Interviews reward spotting the pattern in the first few minutes, not remembering one specific problem. The list and its video solutions are free. Pro is $119 a year (list $199) or $297 lifetime (list $599) and adds courses, company-tagged problems and AI hints.

Where it falls short: a list trains solving alone, not solving out loud while someone listens.

Step 2: Study system design on Hello Interview

Hello Interview's guides are free to start and, per the site, built by FAANG hiring managers and staff engineers. Read the core concepts, then the worked problems, and say each design out loud as you go. Premium adds full courses and Guided Practice, at list price $59 for 1 month, $119 for 1 year or $399 lifetime, with a sale running when I checked.

Where it falls short: Hello Interview wound down its human mock interviews on May 31, 2026, so nobody pushes back on your design.

Step 3: Practice out loud (this is the one I built)

In a randomized study by researchers at NC State and Microsoft, students who solved a problem on a whiteboard in front of an interviewer performed half as well as students who solved it alone in a private room. Steps 1 and 2 teach the material. This step is the rehearsal for that room.

DevInterview.ai runs live voice mock interviews: a 30-minute coding round in an editor that runs your code, a 45-minute system design round on a canvas, both set to your target company and level, and a 30-minute behavioral round. The interviewer asks follow-ups and is told never to say whether you're right and never to hand you the solution, like a real one. Every interview ends with a scored report and a hire verdict. The first interview is free, then $19.99 a month, $49.99 a quarter or $99.99 a year.

Where it falls short: the interviewer is an AI. You get volume and the same rubric every time, not the judgment of someone who runs real hiring loops. That's step 4.

Step 4, super optional: one human session

If budget allows, book one session with an experienced interviewer on interviewing.io in the final week, from $179 per its FAQ. Treat it as a calibration, not practice. Skipping it is fine.

The 8 weeks

My suggested schedule, for someone working full time with 8 to 10 hours a week:

Week 1: start the NeetCode 150 with arrays, hashing and two pointers. Take one free mock interview in the round you feel least ready for, to get a baseline.
Weeks 2 and 3: sliding window, stacks, binary search, linked lists, trees, tries. Start Hello Interview's core concepts. One coding mock a week.
Weeks 4 and 5: heaps, backtracking, graphs, dynamic programming. Two system design problems a week, out loud. Write 8 to 10 behavioral stories in STAR form. Two mocks a week.
Weeks 6 and 7: finish the remaining patterns, then go back to whatever your mock reports flagged. A full mock most days.
Week 8: light review, mocks until the format feels boring, and the optional human session.

If you're short on time or money

Interview in two weeks or less: go straight to step 3, a full mock most days, and study patterns only where the reports point.
Budget is zero: the NeetCode 150, Hello Interview's free guides, DevInterview.ai's free first interview, and the 5 free peer mock interviews a month on Aced (formerly Exponent).

Prices checked on each vendor's own site on October 13 and 14, 2026. The full plan, with sources, is on devinterview.ai. If I got something wrong, tell me in the comments and I'll fix it.

Best AI Mock Interview Tools for Software Engineers in 2026 (prices checked, from someone who built one)

Hamza Ibrahim — Sat, 03 Oct 2026 23:08:13 +0000

I built DevInterview.AI, so I have an obvious bias. I also spend a lot of time on these tools, and most "best AI mock interview tools" lists are written by people who haven't opened half of them, with prices that are a year stale. So here's the comparison I'd want, with every price checked on the vendor's own site on September 30, 2026, and the places where someone else is the better pick called out.

The short version

You want unlimited reps with a voice interviewer: DevInterview.AI, $19.99 a month, first interview free.
You want a human who has run real hiring loops: interviewing.io, from $179 a session.
You want free: Aced (formerly Exponent, which absorbed Pramp) gives you 5 peer mock interviews a month, and interviewing.io's AI Interviewer is free for coding and system design.

Quick comparison

Tool	Best for	Price as billed	Free option
DevInterview.AI	Unlimited live voice mocks: coding, system design, behavioral	$19.99/mo, $49.99/qtr, $99.99/yr	First full interview, no card
interviewing.io	Human mocks with FAANG-level engineers	From $179 per session	Free AI Interviewer for coding and system design
Aced (formerly Exponent, includes Pramp)	Free peer-to-peer mocks	Free; Pro $79/mo or $12/mo billed yearly	5 peer mocks a month
LeetCode Premium	The question bank, not a mock	$35/mo (list $39), $159/yr	Large free tier
Hello Interview	System design self-study	$59 (1 month), $119 (1 year), $399 lifetime, with a sale running when I rechecked on October 14	Some free content
Final Round AI	Real-time interview copilot	$300/yr, shown as $25/mo	Free plan, no practice interviews
Yoodli	Speech and delivery coaching	$8 to $20/mo billed annually	5 free sessions

1. DevInterview.AI: unlimited live voice mock interviews

A full 30 to 45 minute session with a live voice AI interviewer: coding in a real editor that runs your code, system design on a diagram canvas, or a behavioral round with follow-ups. You pick the company and your level, and the interviewer asks follow-ups and pushes back the way a real one does. Every session ends with a scored evaluation.

Where it wins: rep volume. A month of daily mocks costs about a tenth of one human session. It also treats system design as a real spoken interview on a canvas, not a text quiz.

Where it falls short: the interviewer is an AI. If you want hiring-manager judgment from a human who has run real loops, interviewing.io offers something we don't.

2. interviewing.io: the best human mock interviews

Anonymous mocks with senior, staff and principal engineers who make hiring decisions at FAANG and similar companies. Feedback quality is the ceiling for the category, and the price reflects it: sessions start at $179, more if you want an interviewer from a specific company, with a full refund if you're unhappy. Their AI Interviewer is free for coding and system design.

Choose it when you're past the practice-volume stage and want one or two expert calibration sessions before a real onsite.

3. Aced, formerly Exponent and Pramp: the best free peer practice

Pramp merged into Exponent in 2024, and Exponent renamed itself Aced in August 2026. Free accounts get 5 peer mock interviews a month: you're matched with another candidate and take turns interviewing each other over video with a shared editor. Pro ($79 a month, or $12 a month billed yearly) removes the cap, and Expert ($99 a month, or $20 a month billed yearly) adds AI mocks.

The tradeoff: your interviewer is another nervous candidate, so feedback quality varies a lot, and every session needs a scheduled partner.

4. LeetCode Premium: the question bank, not a mock

Not a mock interview tool, but it belongs here because it's where most people start. Premium ($35 a month, list price $39, or $159 a year) adds company-tagged problems, timed assessments and official solutions. Drill here, then rehearse out loud somewhere else: typing silently into a judge teaches you nothing about explaining your approach, which is the skill interviews actually test.

5. Hello Interview: system design self-study

Strong written system design courses with guided practice and an AI tutor. At list price $59 for a month, $119 for a year, or $399 lifetime, with a sale running when I rechecked on October 14; the month and year plans don't auto-renew. Their live human mock interviews ended on May 31, 2026, so treat it as a study resource, not a mock service.

6. Final Round AI: a different category

Best known for its Interview Copilot, which feeds you answers during real interviews. The free plan doesn't include practice interviews; Pro is $300 a year, shown as $25 a month. Know what you're buying: using a copilot in a live interview breaks most companies' interview rules, and a dependency that fails under pressure fails at the worst moment.

7. Yoodli: delivery, not content

An AI communication coach that scores pacing, filler words and structure on any spoken answer. Free for 5 sessions, then $8 to $20 a month billed annually. It won't judge your algorithm, so it's a supplement when the problem is how you talk rather than what you say.

Which should you try first?

Most reps for the money: DevInterview.AI's free interview. Every rating we've ever received is public on our reviews page, so you don't have to take my word for it.
A free way to keep practicing: interviewing.io's AI Interviewer and Aced's 5 peer mocks a month.
A human's judgment before the onsite: one interviewing.io session after you've done your reps.

Where these fit in a full plan

Added October 14, 2026. A mock interview tool is one step, not the whole prep. Here's the stack I'd give a friend, one tool per step:

Learn the patterns: the NeetCode 150, with free video solutions.
Study system design: Hello Interview's guides, free to start.
Practice the interview out loud: DevInterview.ai, first interview free.
Super optional: one interviewing.io session in the final week, from $179, for a human read.

The full 8-week schedule is in our study plan.

One freshness test for any list you read

Google retired Interview Warmup in April 2026. If a "best tools" post still recommends it, nobody has checked that post since spring.

Every price above was checked on the vendor's own page on September 30, 2026, and Hello Interview's again on October 14. The full comparison, with sources, lives at devinterview.ai/compare. If I got something wrong, tell me in the comments and I'll fix it.