Support

Contact

For issues, purchase restoration, accessibility, or feedback: support@signalgrid.es.

If possible, include iPhone model, iOS version, Signal Grid version, and a short description of what happened.

How to play

Swipe a complete row or column. Shifts are cyclic: what leaves one edge returns from the opposite edge. The goal is to connect each signal with its output in as few moves as possible.

Premium and restoration

Signal Grid Premium is a one-time non-consumable purchase. It unlocks the archive, Hard 5×5 grids, advanced stats, and extra visual modes.

To restore: open Settings or Premium in the app and tap Restore Purchases. If it does not appear, confirm that you are using the same Apple ID used for purchase.

Offline play

Daily puzzles, practice, and local results are designed to work without internet. Game Center, purchases, and restoration may require network access.

Game Center

Game Center is optional. If you do not sign in, your local result remains visible and gameplay keeps working.

Notifications

Notifications are local and opt-in. You can enable or disable them from Settings. Version 1.0 does not use push notifications.

Accessibility

Signal Grid uses both color and symbol/number to distinguish signals. The app includes high contrast, reduce motion, and sound/haptics controls.