Sudoku Clarity: Logic Puzzle

Sudoku the way it should be — no ads, no paywalls, no fake difficulty. Most sudoku apps claim three difficulty levels. In practice, "Easy" and "Hard" feel identical because they're graded by counting removed clues, not by the logic required to solve them. Sudoku Clarity fixes that. Every puzzle is graded by solving technique: Easy uses only single-candidate logic — cells where only one digit fits. Medium adds pointing pairs and box-line reduction. Hard requires advanced pair techniques and X-Wing logic. If a puzzle needs a harder technique than advertised, it gets rejected by the engine and regenerated. What you see on the label is what you get on the grid. WHAT YOU GET • Infinite unique puzzles — procedural generation, no fixed database to exhaust • Honest difficulty — Easy is genuinely easy, Hard is genuinely hard • Guaranteed unique solution — every puzzle has exactly one answer • Pencil marks — tap and hold to enter candidate notes in any cell • Conflict highlight — errors light up in real time so you catch mistakes early • Undo — step back from any move, no limit • Pause timer — grid hides when paused, no peeking • Statistics — best time, solved count, and win streak per difficulty • Offline — works anywhere, no internet required • No account, no sign-in, no data collection DIFFICULTY EXPLAINED Easy: logic chains of 1-2 steps. Ideal for commutes and short breaks. Medium: requires scanning multiple rows, columns, and boxes simultaneously. Satisfying 10-20 minute sessions. Hard: demands advanced elimination techniques. The real challenge for serious solvers. PRIVACY No data leaves your device. No analytics SDK, no advertising framework, no account required. Your solve times and statistics stay on your iPhone, period.