Sudoku Lite Version vs Sudoku

Sudoku — A refined puzzle experience built for iOS. Four handcrafted themes, four difficulty levels, and a Daily Challenge that syncs worldwide. Pure logic, zero clutter. FEATURES • Four difficulties: Easy, Medium, Hard, Expert • Daily Challenge — same puzzle for everyone, build your streak • Notes mode — jot candidate digits in warm amber; always visible at a glance • Fill Candidates — reveal legal candidates for every cell in soft gray, distinct from your handwritten notes • Number-first mode — pick a digit, then tap cells to fill them quickly • Hints — step-by-step reasoning nudges when you're stuck • Verify — instantly check for any incorrect entries • Auto-save — leave any time and resume right where you left off DESIGN • Four themes: Paper Dawn · Indigo Drift · Grid Geometric · Midnight Cyan • Icon toolbar with per-button accent colors — clean and intuitive • Adaptive layout for all iPhone and iPad screen sizes • Game Center leaderboards and achievements LANGUAGES English / 繁體中文 / 简体中文 / 日本語 / 한국어

Sudoku — the timeless number puzzle built for focus, depth, and daily habit. Six difficulty levels from gentle Easy warm-ups to relentless Extreme puzzles let you play at exactly your level. Progress through tiers — Bronze, Silver, Gold, Platinum, Diamond — as your skills evolve and your score climbs. A FRESH PUZZLE EVERY DAY A new Daily Challenge awaits every morning. Complete every puzzle in a calendar month to earn the coveted Monthly Trophy. Miss a day? Watch a short video to rescue your streak. Build a streak, protect your consistency, and watch your resolve grow stronger every day. TOOLS THAT MAKE YOU SHARPER • Notes Mode – pencil in candidate numbers for any cell • Fill Notes – instantly populate all valid candidates across the board • Smart Hints – reveal the correct value and the logical technique behind it • Fast Insert – pick a number, then tap cells to fill at speed • Undo & Redo – move freely back and forth through your moves LEARN THE TECHNIQUES Go beyond guessing. Interactive lessons walk you through real solving logic — from Hidden Singles and Naked Pairs to Locked Candidates, X-Wing, Y-Wing, and Swordfish — with guided practice puzzles that unlock as you level up. TRACK EVERYTHING Level up through a full XP system. Unlock 80+ achievements across seven categories — First Steps, Difficulty, Perfect Play, Speed, Score, Streak, and Lessons — plus a handful of secret ones waiting to be discovered. Review per-difficulty statistics — best time, average time, win rate, error rate, best score, and total time played. PERSONALIZE YOUR GAME Choose from White, Brown, or Black themes. Adjust number size for comfort. Toggle haptic feedback, the timer display, and automatic note removal. Available in 26 languages, including English, Spanish, French, German, Japanese, Chinese, Arabic, Russian, Korean, and more. CLEAN BY DESIGN A minimal interface built around the grid. Every tap, every highlight, every transition serves the puzzle — nothing else. Download Sudoku and start your first game today.