Data Management
Since ChemApp values your privacy, all your progress (favorites, mastered cards, quiz high scores, and custom sets) is stored directly in your browser. Choose how you'd like to manage it below.
Sync Between Devices
Using ChemApp on your phone and want to continue on your computer? Generate a temporary code on one device, then enter it on the other. The code is valid for 15 minutes and can only be used once - nothing is stored permanently, no account needed.
Get Sync Code
Create a code on the device with your progress.
Enter Code
Enter the code shown on your other device.
Backup File
If you clear your cache or change devices, you will lose your progress. Use the tools below to create a manual backup you can keep - for example before clearing your browser or switching phones.
Download
Download your progress as a .json file to keep it safe.
Restore
Restore your progress from a saved backup file.
Danger Zone
Reset All Progress
Warning: This will permanently delete all your progress, favorites, The Lab revision list, quiz scores, and recent feedback from this browser. This action cannot be undone.