Ratio Sudoku: Number Puzzle

Sudoku, no ads, offline

Only for iPhone

Free · In‑App Purchases

iPhone

No ads – ever. No subscription, no tracking, no account. Try it free, unlock once: drag digits onto the empty cells until the whole grid works out. Nine by nine cells, the digits 1 to 9 – and every row, every column and every 3×3 box holds each digit exactly once. Ratio Sudoku is the classic number puzzle: short enough for a coffee break, tricky enough for the evening. Try it free: the Easy difficulty and the Daily Puzzle stay free forever. Medium, Hard, Expert and Endless mode come with a single unlock. No ads – ever. No subscription, no tracking, no account. HOW IT WORKS Drag a digit from the tray onto an empty cell – or tap the cell first, then the digit. A tapped cell highlights its row, its column, its box and every matching digit, and the tray shows how often each digit is still missing. A wrong digit turns red and costs one of three tries; undo is free, and a hint fills a cell for you. FOUR DIFFICULTY LEVELS From Easy, where every digit follows necessarily from the givens, to Expert with barely more than twenty clues. Level after level, without end – every puzzle is generated fresh and has exactly one solution. DAILY PUZZLE A new puzzle every day, the same for everyone. Solve it and grow your streak in the calendar. ENDLESS MODE One puzzle after another, checked only when you submit. How far do you get? AGAINST THE CLOCK The timer starts right away. Beat the target time and earn up to 50 % bonus points – but being slow never costs you anything. Mistakes and hints do. HIGH SCORES AND STATS Personal top 10 per difficulty, for the daily puzzle and for endless runs. Plus statistics on puzzles played, mistakes and hints. CALM AND CLEAR A tidy glass design, light or dark, large digits if you like, subtle sound and haptics – all of it optional. Unfinished puzzles are saved and wait for you. YOUR DATA STAYS WITH YOU No ads, no account, no tracking, no internet needed to play. One fair payment instead of a subscription: unlock once, play forever. Available in German, English, French, Italian, Spanish, Portuguese, Dutch and Polish.

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Ratio Math is now free to try: Easy and the Daily Puzzle stay free forever. Medium, Hard, Expert and Endless come with a single unlock – no subscription, no ads, no tracking. Everyone who already bought the app keeps everything.

The developer, A&R Actio & Ratio GmbH, 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.

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

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

    Seller
    A&R Actio & Ratio GmbH
    Size
    21.4 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 7 more
    • English, Dutch, French, German, Italian, Polish, Portuguese, Spanish
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 A&R Actio & Ratio GmbH