Nine
Variant sudoku for iPhone, iPad, Mac and Apple Watch. Flick to play.
Tap a cell and a ring of nine digits blooms around it; flick toward the one you want. Every board has exactly one solution and is checked by a logic solver before you see it. Classic, Thermo and Killer. A coach that explains why a cell must be what it is. No ads, no in-app purchases, no account, no tracking.