How does backup work on Android?

Heartside uses Android’s built-in backup to your Google account. There’s no sign-in in our app. On Android 9 and later it’s encrypted with your screen lock, so Google can’t read it. Android runs it about once a day while your phone is charging on Wi-Fi, and restores it when you set up a new phone. For a copy you control, use Settings › Save a backup file.

Breathing videos are left out because of their size. To keep them too, save a backup file and tick Include breathing videos. After a restore, live sharing starts fresh: every pet and reading is there, and you can share a pet again with a new link.