FREE version only supports up to android 10. PRO version supports higher android.
https://play.google.com/store/apps/details?id=com.supergbc.pro

HOW TO RESTORE saved states of FREE version to PRO:
Please use X-plore File Manager, go to the directory of FREE version: /Android/data/com.supergbc.free/ then copy its contents to the directory of PRO version: /Android /data/com.supergbc.pro/

- A GBC game file (ROM file) is necessary to play a game.
- Copy your own GBC game files to SD card or Internal Memory. (e.g. /sdcard/GBC/)
- Please search games again after copy new GBC game files.
- Support GB/GBC file (.gb, .gbc, .zip).
- Support Rewind (Your character will never die when this feature is enabled).

LEGAL: This product is not affiliated with or endorsed by Nintendo in any way.

// Option A //

To download SuperGBC (GBC Emulator) mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download SuperGBC (GBC Emulator) mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download SuperGBC (GBC Emulator) from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search SuperGBC (GBC Emulator) in HappyMod App.