An account, if it helps.

Everything works without registering. An optional account lets you save an encrypted copy and restore it on another device, without a name, email or date of birth.

How it works

1. Create your account and keep its recovery key somewhere private. We cannot recover a lost key.
2. Press Save backup whenever you want to update your cloud copy.
3. On another device, use a temporary code generated here, or enter your key. Review the backup before restoring it. Copies transfer when you choose; there is no automatic background sync.

The key provides access to your backup: do not share it. An adult can help children keep it safe. Visual preferences and keys stay on each device.