Classic Sudoku, three ways: a 1,200-level Journey from Camp to the Mountains, a new Daily Challenge every day, and Free play across six difficulty levels. Every puzzle has one solution and can be solved by logic alone, no guessing. - Daily streaks and stats - Pencil notes, Magic Pencil, hints, undo - 8 color themes, light or dark - No account needed, progress syncs via your private iCloud - Free, with ads. No in-app purchases.