Please follow these steps for data backup and restore from Android device to Android device.
1. Perform "Data backup" in ATracker from the device you want to export data. This function can be found in the "..." tab. You can save it to a local device or email it if you like.
2. Open ATracker on the new device, tap the "..." tab and tap "data backup" once. The "DataBackup" folder will be created in "storage/Android/data/com.wonderapps.ATracker".
3. Copy the backup file you created from step 1 to "storage/Android/data/com.wonderapps.ATracker/DataBackup". Different Android phone vendors have different apps (e.g., "Downloads" / "Explorer" / "File Manager") for this task.
4. In ATracker on the new device, tap the "data restore"; it will find the file you just copied, and you can proceed with restoring.
Note: Some Android device has a restriction on file access. Users will need to transfer the file via PC in step 3 instead of doing it directly on Android.