Reading this device…
What about the live features?
Rooms, the Guardian, and the Compatibility Questionnaire are the only parts that store anything on a server (so two people can share them). If you've used them while signed in, you can erase that server-side copy too — sign in and use Erase my data in your account. Everything else, listed above, never leaves this device.
Legend: device-only stays on your device forever · plain backup and encrypted backup describe how each store would be handled if you ever opt into cloud backup. No cloud backup exists yet — today, nothing here syncs anywhere.