🔧 How to Easily Change Your Flutter App’s Package Name in 30 Seconds

✨ Change Flutter App Package Name Using change_app_package_name Package

Changing your Flutter app's package name (also called application ID) might sound like a minor task — but it often turns into a confusing tangle of Android/iOS configuration files.

Luckily, there's a simple way to do it in seconds using a neat little package called change_app_package_name.

Let’s walk through the process!

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🧠 Why Change the Package Name?

The package name uniquely identifies your app on the Play Store and App Store.

Examples:

• com.mycompany.myapp — Production app
• com.mycompany.myapp.dev — Development build

You may want to change it when:

• You clone an app template
• You’re rebranding your app
• You maintain multiple flavors (dev/stage/prod)

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🛠️ Traditional Way (Painful)

Traditionally, changing the app ID requires:

• Manually editing the Android AndroidManifest.xml, build.gradle, and MainActivity.kt
• Updating iOS Runner.xcodeproj and Info.plist

One mistake, and the build fails. That’s where this package saves the day.

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🚀 Meet the change_app_package_name Package

This package lets you change your Flutter project’s package name for Android, and IOS with a single command — and it automatically updates all the relevant files.

📦 Pub link: change_app_package_name

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✅ Step-by-Step Guide

1. 📥 Install the Package

Add it as a dev dependency in your pubspec.yaml:

dev_dependencies:
  change_app_package_name: ^1.1.0

or run this command

flutter pub add -d change_app_package_name

2. Update dependencies

Do Ctrl + S to Save OR write command in terminal to update.

flutter pub get

3. ✨ Run the Change Command

Use the following command in terminal:
Run this command to change the package name for both platforms.

dart run change_app_package_name:main com.new.package.name

To rename only Android:

dart run change_app_package_name:main com.new.package.name --android

To rename only IOS:

dart run change_app_package_name:main com.new.package.name --ios

Where com.new.package.name is the new package name that you want for your app. replace it with any name you want.

✅ This updates all necessary Android files (AndroidManifest.xml, MainActivity.kt, Gradle files).

4. 🧪 Test the Change

Rebuild the app:

flutter clean
flutter run

Also check android/app/src/main/AndroidManifest.xml and android/app/build.gradle — they should now reflect the new package name.

✅ Conclusion

Changing your Flutter app's package name is essential when preparing for production or managing multiple builds.

With change_app_package_name, it takes just one command — no risky file editing required.