Sudoku XL: 16x16 Puzzles

Big grids, Killer & printable

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Sudoku the way you actually want it — including the giant 16x16 boards almost no other app offers. WHAT MAKES IT DIFFERENT • 16x16 grids. Four times the board, the same pure logic. • Every puzzle is solvable by logic alone. No guessing, ever. Each one is verified against a technique solver before it ships — if a human can't reason it out, it doesn't go in. • Print them. Export to PDF in A4 or US Letter, 1, 2 or 4 puzzles per sheet, with an optional answer key at the back. SIX DIFFICULTIES, HONESTLY LABELLED Easy, Medium, Hard, Expert, Extreme and Master. The tier is the hardest technique the puzzle genuinely requires — not a guess based on how many numbers are missing. MORE THAN ONE WAY TO PLAY • A 158-level journey that ramps from singles to XY-Wing • A new Daily Challenge every day, with streaks • Killer Sudoku, with cages and sums • X-Sudoku, where both diagonals count too • A solver for the puzzle in your newspaper • Game Center leaderboards for the daily challenge, points, streaks and 16x16 solves, plus 20 achievements LEARN THE TECHNIQUES — FREE Every lesson is free, with worked diagrams: naked and hidden singles, locked candidates, pairs, triples, X-Wing and XY-Wing. Each one teaches exactly what the next difficulty demands. BUILT FOR REAL PLAYING • Works completely offline. No account, ever. • Pencil marks, undo and redo, auto-check you can switch off • Letters instead of numbers on big grids, so every symbol is one character • Light and dark themes, seven languages SUBSCRIPTIONS Sudoku XL is free to play: every mode, difficulty and board size is open from the start. Optional subscriptions add extras: • Basic — $3.49/month or $34.99/year: premium themes and 250 coins every week • Pro — $6.99/month or $69.99/year: premium themes and 500 coins every week, plus no ads anywhere, the Coach, and printable PDF packs Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sudokuxl.netlify.app/privacy

Ratings & Reviews

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• Easy, Medium and Hard are gentler: puzzles start with more numbers filled in, and there are many more of them. • Game Center: leaderboards for today's daily challenge, total points, longest streak and 16x16 puzzles solved, plus 20 achievements. No account needed, just your Game Center sign-in. • Spanish and Portuguese, including the store and subscriptions. Trophies and the Coach are now translated in every language. • The subscription screen now shows the right yearly saving.

Version 1.0.2

The developer, Adir Davidov, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
    • Usage Data

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Adir Davidov
Size
49 MB
Category
Puzzle
Compatibility
Requires iOS 15.5 or later.
  • iPhone
    Requires iOS 15.5 or later.
  • iPad
    Requires iPadOS 15.5 or later.
  • iPod touch
    Requires iOS 15.5 or later.
  • Mac
    Requires macOS 12.4 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English
Age Rating
4+
In-App Purchases
Yes
  • 105,000 Coins $149.99
  • 65,000 Coins $99.99
  • 9,500 Coins $19.99
  • 4,200 Coins $9.99
  • 28,000 Coins $49.99
  • 1,800 Coins $4.99
  • 500 Coins $1.99
  • 900 Coins $2.99
  • 200 Coins $0.99
  • Pro Yearly $69.99
  • Learn More
Copyright
© 2026 Adir Davidov
  • Developer Website
  • Privacy Policy

    • Supports

    • Game Center

      Discover new games and play with friends. This game also features leaderboards and achievements.

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