Most everyday tasks are small. Convert a file. Save a clip. Grab a screenshot. Ask a model a question.
The tools around those tasks often aren't. An account to create, a file to upload, a dashboard to learn, a subscription to remember.
I'm KAT, co-founder of 123sudo. We're a small team from Uttarakhand building desktop and mobile apps for AI, media, and files. This post is a straightforward introduction: what each app does, what runs on your device, what connects to the internet, and how licensing works.
The design rule behind every app
Before we build a feature, we try to answer one question:
What does this task actually need, and what can it do without?
A file conversion needs your file and your CPU. It doesn't need your email. A screenshot history needs storage on your machine. It doesn't need a cloud account.
That rule doesn't mean every feature is offline. Downloading needs a network. Cloud AI needs a network. The goal is to be specific about which is which.
The apps
9xchat: an AI workspace with cloud and local models
9xchat brings multiple AI models, persistent memory across models, notes, and agentic workflows into one workspace. You can start chatting without setting up API keys first, or bring your own.
Where data goes: with a cloud model, your prompt and attachments go to the provider of the model you chose. With a model running on your machine, that processing stays on your device.
9xconvert: local file conversion
9xconvert converts video, audio, and files locally on Windows, Mac, and Linux. The conversion itself doesn't involve uploading your file to a conversion server.
The free version includes 5 outputs per 24 hours. Pro adds unlimited conversions and URL downloads.
9xbuddy: a media downloader without the trap buttons
9xbuddy has been around in various forms for years. On our apps, extraction runs locally in the app, and page and media URLs aren't sent to 123sudo. Downloading supported media still requires a connection to the source.
9xsnap: screenshots, recordings and clipboard history
Our newest desktop app, available on Windows, Mac, and Linux.
9xsnap keeps one searchable history of what you copy, the screenshots you take, and the screen recordings you make. A few things developers may find useful:
- Clipboard history for text, links, images, and files
- Region, full-screen, and fixed-size screenshots
- Screen, window, or region recording with optional mic narration
- Annotation: arrows, text, highlights, numbered steps, blur, and pixelate
- Trim recordings and export MP4, WebM, or GIF
- Exclude chosen apps from your history, and hide detected secrets in previews
- Lock your history with a PIN or password
Where data goes: clips, screenshots, and recordings stay on your device. 9xsnap doesn't upload them or sync them to a cloud. Licence checks connect to 123sudo with your UID.
The free version opens your 50 newest retained entries. Pro unlocks the full history, the editors, and export.
9xlyrics: lyrics while you listen
A smaller, lighter app for floating lyrics while music plays.
How licensing works: UIDs, not passwords
Our apps use a UID, a unique identifier, rather than an email-and-password account. The same UID can identify you across supported 123sudo apps, but each app's licence is separate.
To be clear about what this means: a UID is still an identifier. It reduces account friction. It isn't a claim of anonymity, and payment processing has its own requirements. Each app's privacy policy explains what's sent and when.
Try first, then decide
Every app has a free way to start. We'd rather you test a tool on a real task than buy it on a promise.
Bundle offer this 11.11
If you're picking up software this 11.11, our lifetime bundles are live for a short time. Each one includes Lifetime Pro on every app in it: pay once, never renews, one UID per app.
At the time of writing:
| Bundle | Apps | Price |
|---|---|---|
| Creator pack | 9xbuddy, 9xconvert | $25.18 (≈ ₹2,518) |
| AI + Media | 9xchat, 9xbuddy, 9xconvert | $33.57 (≈ ₹3,357) |
| All apps | 9xbuddy, 9xconvert, 9xchat, 9xlyrics, 9xsnap | $51.47 (≈ ₹5,147) |
UPI is supported, and there's a 3-day money-back guarantee. The live page has the current prices and countdown.
One distinction worth stating plainly: a lifetime app licence is not unlimited cloud AI usage. Cloud models still have usage costs.
What we're still working on
We're a small team, and every app is still improving. If something behaves differently from what this post describes, or a privacy explanation isn't clear enough, tell us through in-app support. That feedback shapes what we fix next.
Disclosure: I'm a co-founder of 123sudo, the team behind these apps. This is a product introduction, not an independent review.
Written with help from 9xchat, our multi-model AI workspace, and my 123sudo Head of Growth agent. The views are my own.
When you install a new desktop utility, what's the first thing you check: permissions, network access, pricing, or something else?
Top comments (1)
The honest "a UID is still an identifier, not anonymity" line is the kind of clarity most privacy-focused products skip. Refreshing to see it stated plainly instead of implied.
To your question: network access, always first. A file converter that phones home during a conversion is the tell — it either means telemetry I didn't opt into or a cloud round-trip pretending to be local. After that, whether the licence check runs on launch or on use, because that determines whether the app works offline at all.