Sudokunist

Why choose this app over others? Clean design, no ads, hints that explain the strategy, and you can even type in puzzles from the newspaper. Sudokunist is a minimal, focused Sudoku app for people who want to actually get better at the game. Four difficulty tiers: Easy, Medium, Hard, and Diabolical, each with a set of pre-generated puzzles, ordered from simplest to most challenging within their tier. Every puzzle is solvable by pure logic. No guessing required. When you're stuck, the hint system shows you the next logical step and explains the technique behind it: Hidden Singles, Naked Pairs, X-Wing, XY-Wing, Skyscraper, W-Wing, Swordfish, and more. So you understand what you're doing, not just what to fill in. Upgrade to Sudokunist Pro (one-time purchase, no subscription) to unlock Number-First input and My Puzzles. Features - Easy, Medium, Hard, and Diabolical difficulties - Custom puzzles - Hints that name and explain the solving technique - Pencil notes with automatic candidate cleanup - Solve history and best times - Timer, mistake highlighting, related-cell highlights - Highlight matching digits across the board - Light and dark themes Pro (one-time unlock) - Number-First input: arm a digit, tap cells to fill them instantly - My Puzzles: enter and solve any puzzle from a newspaper or book