Contact: [email protected]

HOW TO PLAY Tap a tile and it turns a quarter turn. Line the pipes up from the green valve to the tank so the water flows from one to the other.

Every level has an exact minimum number of moves, worked out before you play. Match it and you keep all three stars. Every move beyond it breaks one. Grey plates and striped barriers block the way as you progress.

COMMON QUESTIONS

How do I restart a level? The RESTART button below the board puts the pipes back and resets the move counter to zero. Your best score for that level is kept.

How do I turn off the sound, music or vibration? The three icons on the home screen, below the buttons. A red diagonal bar means that setting is off. Your choice is remembered.

How do I switch language? The EN / FR selector on the home screen.

I lost my progress. Progress is stored on your device only, inside the app. Deleting the app erases it, and it cannot be recovered. There is no account and no backup on a server, which is also why nothing about you ever leaves your phone.

Is there an end? No. Levels are generated endlessly and keep growing, up to a 7x7 grid.

Are there ads or purchases? None. No ads, no in-app purchases, no account, no internet connection.

Which devices? iPhone running iOS 15 or later. The game needs an A12 chip or newer, which means iPhone XS and later.

REPORTING A BUG Helpful details: your iPhone model, your iOS version, the level number, and what you did just before. A screenshot is worth a long description.

Replies usually come within a few days.

Quarter Turn - 2026 Alain Fovet