On your Android device, open Sonic Runners Reloaded.
Go to Settings → Data Options → Create Backup Save.
In the Data Options, you will see a folder path to where your save is located.
If you are playing on Android 11 or above, you will need to use a computer to transfer your save or install a File Manager app.
If on Android, go to your installed file manager app, go to the Android Folder → data folder → com.brandonwhite.sonrunreload → files.
If you are transferring via PC, click on Internal shared storage → Android Folder → data folder → com.brandonwhite.sonrunreload → files.
Extract the SRR-Database.ini from the files folder and copy it to your computer or your Google Drive.
If you have Sonic Runners Reloaded installed on your other Android device, start the app, but do not input a new username just yet.
For your other Android device, if you are playing on Android 11 or above, you will need to use a computer to transfer your save or install a File Manager app.
Grab your extracted SRR-Database.ini file and go to the same file path on your Android Device again: Android Folder → data folder → com.brandonwhite.sonrunreload → files to paste or move your extracted SRR-Database.ini to that folder.
After completing the transfer, then start up Sonic Runners Reloaded, type in a username (don't worry, it's only temporary), and start up the game.
You will see that the game has started a new file. Go to Settings→ Data Options → Tap Load Backup Save.
You can enjoy playing Sonic Runners Reloaded on your new Android Device.
※Note: Don't try to load a backup if you haven't created one yet, you WILL lose your save
For Android to PC transfers, please follow steps 1-4 in the Android guide, and then follow steps 5-9 in the PC guide.
WARNING: If you decided to edit your save through the ini file, it is considered cheating, and you will become ineligible for both leaderboards in Story Mode/Free Play Mode and Timed Mode.