Ratio Sudoku
Every digit in its place
Only for iPhone
$2.99
iPhone
No ads – ever. No subscription, no tracking, no account. Buy once, play forever: 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.
No ads – ever. No subscription, no in-app purchases, no tracking, no account. Buy once, play forever.
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. Buy once, play forever – no subscriptions, no in-app purchases.
Available in German, English, French, Italian, Spanish, Portuguese, Dutch and Polish.
Ratings & Reviews
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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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- A&R Actio & Ratio GmbH
- Size
- 20.4 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.
- iPhone
- Languages
English and 7 more
- English, Dutch, French, German, Italian, Polish, Portuguese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 A&R Actio & Ratio GmbH
