Contents
Part of the modding hub: How to Mod an APK · Storage: Where APKs Are Stored.
Exporting a Signed APK From Android Studio
- Build → Generate Signed Bundle / APK → APK, select your module.
- Choose (or create) the release keystore — back up the
.jks+ passwords. - Select the release build type, enable shrinking (R8), build. Output:
app/release/*.apk. - Verify:
apksigner verify --print-certs app-release.apk; test-install on a real device. - Play publishing prefers AAB upload (AAB vs APK); direct-APK export remains correct for sideload distribution.
Building an APK in Flutter
From the project root: flutter build apk --release (add --split-per-abi for per-CPU files). Outputs land in build/app/outputs/flutter-apk/. Signing uses the release keystore in android/key.properties.
Extracting the APK of an App Already on Your Phone
- Extractor app: select the app, tap Extract — a copy lands in shared storage.
- ADB:
adb shell pm path <package>→adb pull <remote> ./app.apk(repeat per split). - The copy reinstalls as the same app; as an update it needs matching signatures.
Key Takeaways
- Guard the release keystore — losing it orphans your app identity.
- Flutter: flutter build apk --release, outputs under build/app/outputs.
- Extracted APKs reinstall cleanly; updates need matching signatures.
Frequently Asked Questions
Debug vs release APK — what's the difference?
Debug APKs use a development key with debugging hooks — testing only. Release APKs are optimized and signed with your production keystore — the only kind you distribute.
Can I extract an APK without root?
Yes. Use an extractor app or adb (pm path + pull). Root only matters for browsing /data/app directly.