Numlock Sudoku

Puzzle

Free · Designed for iPad. Not verified for macOS.

Numlock Sudoku is the Sudoku game you've been looking for. Clean, modern, and endlessly replayable with two distinct game modes that cater to every type of player. Classic Mode: Pure Sudoku, no pressure. Take your time, think it through, and solve at your own pace. Mistakes are highlighted to help you learn, but there's no penalty. Unlimited hints when you need a nudge. Perfect for relaxing or sharpening your skills. Arcade Mode: Three lives. Three hints. One shot. Every wrong answer costs a heart. Lose all three and it's game over. Race the clock and see how far you can go. Built for players who want a challenge. Endless Levels: Every difficulty has an infinite number of unique, procedurally generated puzzles. Easy, Medium, Hard, and Expert. Each level is deterministic — come back and replay any puzzle you've faced before. Smart Features: • Pencil mark notes to track possibilities • Auto-remove notes when you place a number • Highlight matching numbers and related cells • Number pad tracks remaining counts per digit • Haptic feedback for mistakes • Timer and personal best tracking per difficulty • Dark mode support Customizable Experience: Toggle highlights, auto-notes, haptics, and theme from the settings. Play your way. Track Your Progress: Stats track your total wins and best times across all difficulties. Level progress is saved independently for Classic and Arcade modes. Beautifully designed. No ads. No clutter. Just Sudoku.

Ratings & Reviews

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The biggest Numlock Sudoku update yet, built around the feedback you've given me. DAILY PUZZLE One handcrafted Hard puzzle every day. Same puzzle for everyone. Build a daily-solve habit. 40 NEW ACHIEVEMENTS 48 total, organized into 10 categories: Milestones, Speed, Mastery, Streaks, Combos, and more. Pop-up toast notifications when you unlock one mid-game. ARCADE GETS DEEPER Combo system rewards consecutive correct placements with on-screen feedback. Arcade win streaks tracked across runs. Comeback Kid achievement for winning with one life left. SMARTER STATS Weekly stats compare this week vs last. Personal Best banner appears when you beat your record. Stats per difficulty and mode. PICK UP WHERE YOU LEFT OFF Auto-save your in-progress game. "Continue" button on the main menu. POLISH & ACCESSIBILITY Color Blind mode. Animated gradient background (toggleable). Subtle board patterns. Cell pulses. Cascading entry animations. Smoother haptics. SHARE YOUR WINS Generate a shareable result card with stars, time, and stats. DIFFICULTY UNLOCKS Earn your way through the tiers. Hard and Expert open up as you win at Medium. MORE FROM DANIEL ALBU Discover other games I've built, including Zesty Match, Passcode Hacker, Heartflip, and Curtle, right from the Settings screen. Thanks for playing! Daniel

Version 1.04

The developer, Daniel Albu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

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    Accessibility

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    Information

    Seller
    • Daniel Albu
    Size
    • 13.6 MB
    Category
    • Puzzle
    Compatibility
    Requires iOS 17.6 or later.
    • iPhone
      Requires iOS 17.6 or later.
    • iPad
      Requires iPadOS 17.6 or later.
    • Mac
      Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.3 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © Daniel Albu (c), 2025-2026
  • Privacy Policy

    • More by Daniel Albu

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