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Life & fun · alternatives · 2026

24 alternatives to Sudoku Ultimato

A calm Sudoku playground with Killer and big grids

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Puzzle Lair brings Sudoku, Killer Sudoku, Calcudoku, X-Sudoku, Kakuro, Ripple Effect, Crossmath and Nonogram together in one clean, free site. Solve daily logic puzzles, track your stats and climb the leaderboards.

    Jun 2026 · puzzlelair.com · its alternatives →

  2. 2
    SudoKoi▲81

    Your next favorite pastime, like Sudoku

    2021 · sudoku.efabian.me · its alternatives →

  3. 3

    Hi HN, I've been working on this Sudoku web app for the past couple of years, on and off during free weekends and afternoons. I started working on it because I was bored during COVID, and Cracking the Cryptic had just become popular on YouTube, which got me wondering how hard it could be to make a Sudoku app. The main idea is for the app to understand the constraints and know how to solve Sudoku grids (and not just be a simple Sudoku drawing/playing app). When it comes to classic Sudoku, the solver doesn't support anything more complicated than X-Wing, but it understands the…

    2025 · sudokuvariants.com · its alternatives →

  4. 4

    Puzzle blocks

    2023 · thndr.io · its alternatives →

  5. 5

    A clean take on a classic game. No distractions - just fun!

    2020 · apps.apple.com · its alternatives →

  6. 6

    Discover ultimate Sudoku. no ads, one purchase, endless fun!

    2025 · apps.apple.com · its alternatives →

  7. 7

    Beautiful Sudoku app with 5 levels, themes and stats

    2019 · apps.apple.com · its alternatives →

  8. 8

    Built for calm minds who love numbers.

    2025 · apps.apple.com · its alternatives →

  9. 9SW

    Hello HN, I've created a new Sudoku app for iOS and Android that prioritizes simplicity and privacy. It's free to download and use, and I'd be grateful for any feedback or suggestions. Features: > 4 difficulty levels, accessible at any time > No personal data collection of any kind > Clean, minimalistic design that focuses on the game > Takes up significantly less space than other popular apps (by a factor of about 10x) > Minimal use of advertisements I was frustrated by how many of the popular Sudoku apps feel excessively over-engineered, consume a lot of storage space and some that even…

    2023 · its alternatives →

  10. 10

    Sudoku, 2048 and a logic puzzle, in one app.

    Jul 2026 · logiqura-ads.web.app · its alternatives →

  11. 11

    A hazzle free sudoku experience for iOS

    Apr 2026 · apps.apple.com · its alternatives →

  12. 12IM

    Source: https://github.com/alabhyajindal/sudoku/blob/main/index.html

    2024 · sudoku-aj.netlify.app · its alternatives →

  13. 13

    Sudoku with zen themes and zero ads

    Aug 2026 · play.google.com · its alternatives →

  14. 14

    Sudoku with no forced ads, 17-clue puzzles, and offline play

    Jul 2026 · play.google.com · its alternatives →

  15. 15

    Classic Sudoku, clean and simple

    2025 · sudokuonline.cc · its alternatives →

  16. 16

    First Sudoku puzzle community app

    2025 · apps.apple.com · its alternatives →

  17. 17

    Over 500 puzzles with only one solution - guaranteed!

    2019 · play.google.com · its alternatives →

  18. 18

    Classic Sudoku, clean and ad-free

    2025 · play-sudokugame.github.io · its alternatives →

  19. 19

    Sudoku without the noise. No ads, no accounts, no pressure.

    Jul 2026 · apps.apple.com · its alternatives →

  20. 20

    Daily sudoku. Race the clock. Learn logic.

    Jun 2026 · sudozen.vercel.app · its alternatives →

  21. 21

    Simple, addictive Sudoku for daily mental workout.

    2025 · play.google.com · its alternatives →

  22. 22

    Free Sudoku App with advanced levels and hints

    2025 · sudokusmart.com · its alternatives →

  23. 23
    Sudoku▲5

    sudoku classic sudoku offline sudoku game, & daily puzzles

    2025 · play.google.com · its alternatives →

  24. 24

    A Deck-Building Twist on Sudoku for iOS

    2025 · sudecku.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →