🚀 How to Reduce Flutter App Size Using `--split-per-abi` (Step-by-Step)

Parikshit verma (Honey) — Thu, 10 Jul 2025 13:04:56 +0000

When you're ready to release your Flutter app, APK size matters — especially for users on slow networks or low-end Android devices.

In this guide, I'll show you how to reduce your Flutter APK size using one powerful command:

flutter build apk --release --split-per-abi

🧠 Why App Size Matters
Default flutter build apk creates a fat APK that includes binaries for all Android architectures:

- armeabi-v7a
- arm64-v8a
- x86_64 (used mostly by emulators)

That means one giant APK, sometimes 70MB+ in size. 😬

⚙️ The Solution: --split-per-abi
Instead of bundling all architectures into one APK, this flag tells Flutter to generate separate APKs per ABI:

flutter build apk --release --split-per-abi

📁 Output Files

(Located in build/app/outputs/flutter-apk/):
app-arm64-v8a-release.apk

app-armeabi-v7a-release.apk

app-x86_64-release.apk

These are much smaller than the default fat APK!

📉 Size Comparison
APK Type Approx Size

Fat APK ~70 MB
armeabi-v7a ~30 MB
arm64-v8a ~34 MB

✅ Why Use This?

🚀 Faster app installs
📱 Better experience on low-end devices
🏆 Improved Play Store install success
🧩 Less storage = more retention

🔗 Official Docs & Resources
📖 Flutter Docs – Build and release APK

📚 More Flutter tutorials at TechyCodex

💬 Wrapping Up
Using --split-per-abi is a must-have trick in your Flutter production workflow. It’s simple, powerful, and drastically reduces your APK size.

👉 If you found this helpful, follow TechyCodex for more dev tips, Firebase tricks, and mobile build strategies!

🧠 Got questions? Drop them below — I’d love to help or learn from your experience!

✍️ Written by Parikshit Verma for TechyCodex

🧵 Real-Time Chat App using Flutter + FastAPI (via WebSocket)

Parikshit verma (Honey) — Mon, 07 Jul 2025 09:46:20 +0000

Want to learn how to build a real-time messaging app with Flutter and FastAPI?

I just published a beginner-friendly tutorial where I walk through building a chat app using WebSocket. The backend is in Python using FastAPI, and the frontend is in Flutter. Perfect for learning how to send/receive real-time messages!

✅ Full guide with source code:
👉 https://techycodex.com/blog/flutter-fastapi-chat-app-websocket-tutorial

Hope it helps!

DEV Community: Parikshit verma (Honey)

🚀 How to Reduce Flutter App Size Using `--split-per-abi` (Step-by-Step)

🧵 Real-Time Chat App using Flutter + FastAPI (via WebSocket)