DEV Community: Bayajit Islam

How I Built Avo Balance — An AI-Powered Meal Plan Organizer with Flutter

Bayajit Islam — Sat, 16 May 2026 04:32:33 +0000

Hi, I'm Bayajit Islam — a software developer based in Dhaka, Bangladesh.
I build cross-platform mobile apps using Flutter & Dart, and backend APIs
with FastAPI & Python.

Today I want to share how I built Avo Balance — an AI-powered meal plan
organizer now live on Google Play Store.

The Problem

Most people have a meal plan. But following it daily is the hard part.

You forget what to eat. You miss meals. You don't know what to buy at
the grocery store. Your plan just sits there — unused.

That's exactly what Avo Balance tries to fix.

What is Avo Balance?

Simple idea — upload your meal plan, and let the app do the rest.

Avo Balance reads your plan using AI, breaks it into a clean daily
schedule, reminds you when to eat, and even generates your grocery
list automatically.

No more forgetting. No more guessing. Just follow the plan.

📱 Download on Google Play

Why Flutter?

I'm a Flutter developer — so Flutter was the natural choice.

But beyond that, Flutter genuinely made sense for this project.
One codebase. iOS and Android. Same experience on both platforms.
And the UI possibilities with Flutter are hard to match.

How It Works

Step 1 — Upload your meal plan
Take a photo or upload a document of your diet plan.
AI reads it and extracts your meals automatically.

Step 2 — Get your daily schedule
Breakfast, lunch, dinner, and snacks — all organized
into a clean daily view.

Step 3 — Follow reminders
The app reminds you when it's time to eat so you
never miss a meal.

Step 4 — Track your progress
Mark meals as eaten or skipped. See your calorie
overview for the day.

Step 5 — Shop smarter
Avo Balance generates a grocery list based on your
meal plan automatically.

Challenges I Faced

The AI part was harder than I expected

Getting AI to correctly read different types of meal plans
was genuinely challenging. People upload all kinds of things —
handwritten notes, PDF documents, photos of printed plans.
Making the extraction reliable took a lot of iteration.

Notifications are never as simple as they look

I thought notifications would take a day. It took much longer.
Android has strict battery optimization that blocks notifications.
Testing on real devices revealed problems the emulator never showed.

Building for both free and paid users

Deciding what features to put behind a subscription and how to
handle billing cleanly across Android and iOS was a learning curve.
But once it clicked, it felt very rewarding.

What I Learned

Honestly, the biggest lesson wasn't technical.

It was this — ship early, improve later.

I spent too long trying to make everything perfect before releasing.
The moment I published to the Play Store and real users started
downloading it, the feedback I got was worth more than weeks of
solo testing.

Also — always test on a real device. Always.

What's Next

🍎 iOS App Store release — coming soon
🤖 Smarter AI meal suggestions
📊 Better nutrition tracking
🛒 Grocery list with store integration

Try Avo Balance

📱 Download on Google Play

🍎 App Store — Coming Soon

About Me

I'm Bayajit Islam, a software developer from Dhaka, Bangladesh.
I build cross-platform mobile apps with Flutter and backend APIs with FastAPI.

🌐 Portfolio: bayajitislam.com
💼 LinkedIn: linkedin.com/in/bayajitislam
🐙 GitHub: github.com/BayajitIslam
🐦 Twitter: twitter.com/bayajitislam
📸 Instagram: instagram.com/bayajit.islam

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Learning Backend with Node.js: Running My First Server

Bayajit Islam — Mon, 10 Nov 2025 13:12:02 +0000

3 State Management Mistakes I Wish I Knew Earlier — By Bayajit Islam

Bayajit Islam — Tue, 04 Nov 2025 06:18:40 +0000

When I first started building Flutter apps, state management felt overwhelming.

I made some mistakes that cost me hours — here are the top 3 I wish I knew earlier 👇

1️⃣ Using `setState` Everywhere

At first, I used setState() for almost everything.

✅ Mistake: It caused unnecessary rebuilds and made debugging harder.

💡 Tip: Use ValueNotifier, Provider, or Riverpod for parts of the UI that don’t need a full rebuild.

2️⃣ Overcomplicating with Heavy Packages

I tried every package I found online — Bloc, MobX, Redux — even for tiny apps.

✅ Mistake: Overkill = slower dev + more boilerplate.

💡 Tip: Start simple: Provider or Riverpod is enough for most small to medium apps.

3️⃣ Not Planning App Architecture Early

I jumped straight into coding without thinking about how data flows.

✅ Mistake: Hard-to-maintain code, messy state, and bugs everywhere.

💡 Tip: Spend time planning state hierarchy: which widgets own the state, which widgets just listen.

📌 Key Takeaway

State management isn’t just about code — it’s about structure and efficiency.

Pick the right approach for your app size, and think about data flow early.

I’m Bayajit Islam, a Flutter frontend developer who loves building clean, maintainable apps.

Small mistakes early can save you huge headaches later 🚀

How I Optimized My Flutter App’s Performance by 40% — By Bayajit Islam

Bayajit Islam — Wed, 08 Oct 2025 03:40:57 +0000

When my Flutter app started lagging, I decided to fix it — not just patch it.

Here’s how I improved the performance by around 40% 👇

🧠 1. Found Rebuild Issues in DevTools

Using Flutter DevTools, I noticed some widgets rebuilding too often.

✅ Fixed it by adding const keywords and breaking large UIs into smaller stateless widgets.

⚡ 2. Switched to `ListView.builder`

Static Column → ListView.builder() = smoother scrolling.

Even for small lists, .builder() matters.

💾 3. Cached Images

Replaced Image.network() with CachedNetworkImage.

Instant load when navigating between screens!

🧩 4. Used `ValueNotifier` Instead of `setState`

For small UI updates, ValueNotifier + ValueListenableBuilder keeps rebuilds minimal and performance high.

🔄 5. Fewer Animations, More Speed

Cut unnecessary animations and used Lottie only where it added value.

Less GPU load = smoother UX.

📊 Result

Rebuilds ↓ 40%
Memory ↓ 30%
Smoother frame rendering ✨

Performance isn’t just about numbers — it’s about how the app feels.

Little tweaks make a big difference.

I’m Bayajit Islam, a Flutter frontend developer focused on fast, clean, and modern UI.

Let’s connect on LinkedIn, GitHub, Facebook, or Instagram.`

Hey Dev Community — I’m a Flutter Frontend Developer

Bayajit Islam — Tue, 07 Oct 2025 04:05:26 +0000

Hey everyone! I’m Bayajit Islam, a Flutter frontend developer who enjoys building smooth, responsive, and user-friendly mobile apps.

I spend most of my time working with Flutter and Dart, focusing on clean architecture, beautiful UI, and great performance. For state management, I usually go with GetX or BLoC, depending on what fits best.

Lately, I’ve been learning a bit of Django to understand how Flutter connects with backends — it’s been fun exploring the full picture of app development.

I joined dev.to to share what I learn, write about Flutter best practices, and connect with developers who love crafting great apps as much as I do.

If you’re into Flutter, architecture, or just learning new things — say hi in the comments!