Your progression is stored anonymously and combined safely across linked devices.
The game keeps the highest progression values from every linked device, so a stronger record is never overwritten by a weaker one.
On this device, create a temporary code. Scan the QR from Android, or type the six-digit code on the other device.
Expires in 10 minutes.
Use this when the code is displayed on your phone or another computer.
The recommended option combines the highest shards, records, unlocks and lifetime statistics from both devices.
Cloud Sync is the normal method. Text backup remains available as an emergency offline fallback.
Deleting cloud data removes the shared cloud save and all linked anonymous device credentials. This device's local progression remains on the device. Automatic cloud registration stays disabled until you deliberately press Sync Now again.