John DataSync2

John emulators

About this game

John DataSync2 is Johnemulator app's Dropbox plug-in.
You can backup / restore / synchronize app data.
This app does not work without Johnemulator apps.

(Android 4.1 or later required.)

Ratings and reviews

im so sad i installed and connected everything to the folder where i keep my game, but as soon as i went back to the john gbac emulator app the files couldnt be opened. then when i unlinked my account to see if that would fix the issue, all my save data was deleted. please help!! this is my favourite emulator system but i cant keep losing my data over these issues 😢

It doesn't work properly at the moment. The saves backup works but the games back up just says "Completed successfully" immediately without backing up anything. It'll be cool if it could back up to other services besides Dropbox. People that use emulators are often tech savvy, so an option to backup to personal clouds would be really cool. Even if it is through something basic like SFTP.

Edit: as of today, possibly prior, I too am getting backup failures. When I unlinked my account then tried to link it again I get "this app is currently disabled". Is this an issue with DB or with the John cloud backup thingy app? Never worked on my note 8, both note 20 and teclast m40 now not backing up, never even got to install on my galaxy tab a8.

What's new

-optimized for Android14
-fixed bugs