Support

Found a bug, stuck on something, or have an idea? We read every message and reply as soon as we can.

Get in touch

Email lukas@nilsenlab.com and include:

• Your device and OS version, e.g. iPhone 15, iOS 18
• What happened, and what you expected to happen

Common questions

How do I move my data to a new phone? Export a JSON backup from the Data & privacy screen, then restore it on the new device. Progress is stored on your device, so without a backup it can’t be recovered.

Do I need an account? No. Cairn works fully offline with no sign-in. Companions is optional and anonymous.

How do I remove my cloud data? Use the delete option on the Data & privacy screen. It removes your display name, trail code, summaries, and companion links.