In this emulator app, you can load game files, customize controls, and save progress using save states. Includes support for zipped files, cheats, and Bluetooth controllers.
AppRecs review analysis
AppRecs rating 3.7. Trustworthiness 87 out of 100. Review manipulation risk 18 out of 100. Based on a review sample analyzed.
★★★☆☆
3.7
AppRecs Rating
Ratings breakdown
5 star
64%
4 star
4%
3 star
5%
2 star
3%
1 star
24%
What to know
✓
Low review manipulation risk
18% review manipulation risk
✓
Credible reviews
87% trustworthiness score from analyzed reviews
⚠
Ad complaints
Many low ratings mention excessive ads
About John GBC
This app does not work without your own game files.
Please try John GBC lite before purchasing.
John GBC can take over John GBC Lite data.
Features
- Original GBC engine
- High quality rendering
- Very fast
- Search game files in SDCard & Internal Storage
- Virtual On-screen keypad
- Zipped file support
- Save States (with previews)
- Customizable keys
- Turbo buttons
- Screenshot
- Fast forward / Slow down (x0.25 - x16)
- Cheats (Game Genie/Game Shark/PAR)
- Bluetooth/MOGA controller support
- Super Gameboy borders
- Dropbox support (requires John DataSync)
- No ADs
- No internet connection
John GBC Screenshots
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Reviews for John GBC
DecadentCat Animation
12/11/2025
It has VISUAL BUGS (related to the VRAM of the gbc and the way it loads) creating visual aberrations on game... and the colors are oversaturated (I am 100% sure it is an issue of this emulator in specific because I tried another one here in my phone and it ran perfectly). Not worth paying for the app on this state of development.. I hope it gets better one day. Also... it asks for you to be ONLINE sometimes in order to confirm that you paid for the APP (extremely annoying)
Eric Burcham
12/6/2025
Have been using the lite version and recently upgraded. This has been working well for me on GBC games and roms. I have not had any issues with saving or the app crashing.