Suduxo

Sudoku that teaches logic

Only for iPhone

Free · In‑App Purchases

iPhone

Play Classic Sudoku free on three levels. Learn techniques in the Academy and find the logic behind your next move. More content and no ads with a one-time Plus purchase. Suduxo is a calm, modern Sudoku app for beginners and experienced solvers. Every day, everyone receives the same numbered puzzle, ready to share as a result card without revealing any answers. Play Classic Sudoku for free on Calm, Medium and Hard. Suduxo Plus also unlocks Killer, Thermometer, Diagonal, Windoku, Arrow and Suduxo's original Echo variant, plus Expert and the new Extreme master challenge. Every Extreme puzzle has exactly one solution and has been verified as logically solvable without guessing. Choose manual notes, smart clearing or automatic candidates. Undo and redo are always free, and you can reset the same puzzle without losing the option to undo the reset. Every completed board receives a score based on difficulty, variant, time, precision and how independently it was solved. Fastest time and best score are stored separately. Suduxo Academy teaches techniques ranging from naked and hidden singles to naked pairs, X-Wing and advanced patterns. The Logic Lab adds short rounds of mental arithmetic and number sequences. Features: - Classic Sudoku with three free difficulty levels - Six special variants, Expert and logic-certified Extreme with Suduxo Plus - Technique-based Pattern Coach hints for one life - Pattern Coach guidance without life cost with Suduxo Plus - Free undo, redo and undoable puzzle reset - Manual notes, smart clearing and automatic candidates - Best scores, fastest times, daily marks and achievements - Apple Game Center leaderboards and achievements - One new life every 30 minutes - A shared numbered daily puzzle with a result card - Lessons for basic and advanced techniques - Sum Hunt and Pattern Pulse mini-games - Daily goals, streaks, marks and personal progress - Light and dark appearance - Swedish and English - Optional rewarded ads - Permanent Suduxo Plus purchase; local App Store price shown before purchase Suduxo works without an account. Starting, undoing, redoing or resetting a puzzle never costs a life. A mistake or a new technique hint costs one life, and automatic candidates cost at most one life per puzzle. Mistakes also reduce the score. One life returns every 30 minutes. The first app session and first five completed Sudoku puzzles have no full-screen ads. After a one-time explanation, an ad may appear after Sudoku 6 and then every third completed Sudoku, only between games and subject to time and daily limits. Logic Lab is counted separately and less often. There are no banners, launch ads or ads during a game, and a completed optional rewarded ad skips the next scheduled full-screen ad. Suduxo Plus permanently unlocks all premium content, guidance and automatic candidates without life cost, focus audio and unlimited lives, and removes all advertising. There are no purchasable currencies, consumable packs or loot boxes.

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

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Information

Seller
LTMKR Consulting AB
Size
15.9 MB
Category
Puzzle
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
Languages
English and Swedish
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 LTMKR Consulting AB
  • 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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