Opens straight into a puzzle pitched at your level. Solve it, swipe up, get another. Hundreds of puzzles built in for offline play, thousands more waiting for you.
Sudoku that opens straight into a puzzle.
No menu. No lobby. No daily-reward popup. Tap the icon and you're already playing a board pitched at your level. Finish it — or get bored — swipe up, and the next one rises from the bottom. The feed never dead-ends and never tells you to come back tomorrow.
ONE PUZZLE AT A TIME, FOREVER
- Launches directly into a playable puzzle
- Swipe up on the board to move on; the board tracks your finger and springs back if you change your mind
- Swipe away a puzzle you never touched and it leaves no trace
- Started one? Save it for later, reset it, or skip it
- 10,000 puzzles in the catalog, topped up quietly in the background
PUZZLES THAT FIND YOUR LEVEL
Every board is graded by the reasoning it actually takes to crack — the chain of techniques you have to reach for, not how many squares happen to be blank. Ratings then move with real play as people solve, fail and skip. The app reads your recent solves and picks from the band around you, so the difficulty follows you up.
- Easy — a clean warm-up
- Medium — needs a plan
- Hard — needs a technique
- Expert — needs all of them
EVERYTHING YOU NEED, NOTHING YOU DON'T
There is no hint button. This app won't solve a square for you and won't nudge you toward the next move — the puzzle is yours. It just takes the bookkeeping off your hands.
- Self-cleaning notes — place a number and it clears that square's pencil marks and strips the digit from every peer in the row, column and box
- Quick Enter — hold a digit, then tap squares to drop it in
- Matching digits — the digit you're holding glows everywhere it already sits
- Counts on every key — each number key shows how many of that digit are left
- Undo and erase — step back through entries, erases and note changes
- Mistakes, optional — leave conflict highlighting on for three counted mistakes, or turn it off and find out at the end
- Pause — the board hides behind a cover that ignores every touch
- Start over — givens back, everything else cleared
- A shelf for later — park a puzzle with your entries, notes and elapsed time intact
EVERY PRESS TICKS
- Controls ease under your finger the instant you touch them
- Complete a 3x3 block and the whole block pulses as one piece, with a stronger haptic beat
- Finish a row or column and the line pulses the same way — one beat for the line, not nine
- Haptics off in one tap
- Light, dark, or follow the system — live, with no restart
300 PUZZLES OFFLINE
Three hundred boards ship inside the download, so it plays fine on a plane, on a subway, or anywhere with no signal.
NO ACCOUNT. NO ADS. NO TRACKING.
- No sign-up, no email box, no password — your device is identified anonymously
- No ad SDKs, no advertising identifier, and the app never shows the "Allow App to Track" prompt
- Nothing sold, nothing brokered, nothing linked to you elsewhere
- Crash, performance and basic usage analytics only, listed plainly in the privacy policy
Ratings & Reviews
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## What's Changed
* [SYN-393] Update app version to 0.5.0 by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/350
* Archive syn-391 and syn-393; sync their capability specs by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/351
* [SYN-395] ADR-009: Platform Game Services for Achievements by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/352
* [SYN-392] Make CI's screenshot-refresh job actually run by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/353
* [SYN-395] Design the achievement set + console-entry worksheet by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/354
* Archive syn-392-screenshot-refresh-job by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/356
* [SYN-395] Archive the achievement-set OpenSpec change by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/357
* [SYN-394] Share a picture of the puzzle you are stuck on by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/355
* [SYN-403] Give the iOS XCTest leg a job-private simulator by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/359
* [SYN-403] Run the matrix when checks.yml itself changes by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/360
* [SYN-396] Local achievements engine and in-app achievements surface by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/358
* [SYN-399] Android: Play Games Services integration (sign-in + achievements mirror) by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/362
* [SYN-400] Mirror achievements to Game Center, and offer sign-in when it is earned by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/361
* [SYN-405] Move navigation out of the header into a bottom tab bar by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/363
* [SYN-404] Record the share card into the layer, not past it by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/364
* [SYN-407] Confirm a Play Games sign-in, re-read on resume, and say when it fails by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/366
* Archive nine landed changes; sync their capability specs by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/367
* [SYN-409] Start the Play Games achievements UI for result by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/369
* [SYN-408] Make stars a first-class feature: per-puzzle ratings and an uncapped total by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/368
* [SYN-401] Declare what the game services collect, and say it on the policy page by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/365
* [SYN-401] Archive syn-401-game-services-compliance; sync its capability specs by @CodyEngel in https://github.com/SynessStudios/sudoku/pull/370
**Full Changelog**: https://github.com/SynessStudios/sudoku/compare/0.4.0...0.5.0
Version 0.5.0
The developer, Syness Studios LLC, 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 Linked to You
The following data may be collected but it is not linked to your identity:
Location
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
Syness Studios LLC
Size
40.7 MB
Category
Puzzle
Compatibility
Requires iOS 15.0 or later.
iPhone Requires iOS 15.0 or later.
iPad Requires iPadOS 15.0 or later.
iPod touch Requires iOS 15.0 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
