Support

Lattice is a premium cross-math puzzle game — no subscription, no account, and a human answers every support mail.

Email us — a person replies

We reply within 48 hours. Please include your app version and device.

Contact

Email info@dry-labs.com — we reply within 48 hours. Please include your app version and device (Settings → About in the app, or the in-app "Get help" button fills it in).

Is my progress backed up?

Your progress is stored on your device. Cloud sync is planned.

I bought Lattice Complete on another device.

Use "Restore purchase" on the unlock page — purchases follow your Apple ID.

A puzzle looks unsolvable.

Every Lattice puzzle is machine-proven to have exactly one solution. Tap a red tile to take it back, or use a hint — and if something still looks wrong, email us a screenshot; we treat correctness reports as our highest priority.