About Andoku Sudoku 3
Andoku Sudoku 3 is a classic Sudoku number puzzle game for smartphones and tablets. Train your brain with thousands of logic puzzles, carefully graded across nine difficulty levels — from very easy to very hard, and...
Andoku Sudoku 3 is a classic Sudoku number puzzle game for smartphones and tablets. Train your brain with thousands of logic puzzles, carefully graded across nine difficulty levels — from very easy to very hard, and playable offline.
Features
✔ light and dark themes with a customizable accent color
✔ unlimited undo and redo
✔ pencil-mark notes with automatic candidate computation
✔ hints that point out and explain the next logical move
✔ optional error checking
✔ bookmarks to save and return to earlier positions
✔ many game variations
✔ nine difficulty levels
✔ cloud synchronization across devices
✔ capture puzzles with your camera
✔ enter your own Sudoku puzzles
✔ share puzzles with friends
✔ detailed game statistics
Game variations
Beyond classic Sudoku, Andoku Sudoku 3 includes a wide range of variants. Each adds extra regions that must also contain the digits 1 to 9:
• X Sudoku — the two main diagonals
• Hyper Sudoku — four extra inner boxes
• Percent Sudoku — two extra boxes and a diagonal, arranged like a "%" sign
• Center Dot Sudoku — the center cell of every box
• Asterisk Sudoku — nine cells in a star pattern
• Color Sudoku — nine colored groups of cells
Every variant is also available as a
Jigsaw Sudoku , where the nine 3×3 boxes are replaced by irregularly shaped regions — for an extra challenge.
Tutorials
Andoku Sudoku 3 comes with tutorials that teach you a wide range of solving techniques. Using real game situations, they walk you through each technique step by step.
The techniques are ordered by difficulty, from very simple (Introduction, Hidden Single) all the way to advanced (XY-Chain, Sashimi Swordfish).
Hints
Stuck on a puzzle? Ask for a hint. Andoku Sudoku 3 points out the next logical move and explains the technique behind it — the same techniques covered in the tutorials.
Enter your own puzzles
Want to solve the Sudoku from your local newspaper or puzzle book on your phone? Just point your camera at the printed puzzle and Andoku Sudoku 3 reads it for you — or type it in by hand.
Cloud synchronization
Save your progress to the cloud and sync games across your devices. Start a puzzle on your phone and pick it up later on your tablet — right where you left off.
Previous Versions
Here you can find the changelog of Andoku Sudoku 3 since it was posted on our website on 2016-09-18 11:52:09.
The latest version is and it was updated on 2026-10-12 18:56:13. See below the changes in each version.
Andoku Sudoku 3 version
Updated At: 2026-10-02
Changes: • Updated for Android 17
• Support for predictive back gestures
• Seven new languages
• New game variants: Girandola and Jigsaw Girandola
• Distinct highlight colors for color-background puzzles
• Camera capture: choose the game variant, plus more accurate digit recognition
• WebDAV sync over the local network still works (Android 17)
• In landscape, content is no longer hidden behind a display cutout
• Various bug fixes and updates
Thanks for playing!
Andoku Sudoku 3 version 1.38.2
Updated At: 2026-09-26
Changes: • This release supports Android 15
• In cell first input mode, the highlighted digit can be turned off by tapping the same cell again
• Added list of open source licenses to settings
• Updated underlying library dependencies
• Bug fixes and refactoring
Andoku Sudoku 3 version 1.37.4
Updated At: 2024-12-11
Changes: If you prefer the icon notification instead of the pop-up text when checking the puzzle, there is now a setting in "Settings - Look and feel" to change this.
Andoku Sudoku 3 version 1.37.3
Updated At: 2024-05-22
Changes: • Enhanced statistics module
• Implemented shutter button functionality for capturing puzzles
• Introduced a menu option for swiftly solving all Naked Singles
• Implemented a brief notification upon puzzle verification
• Enhanced layout for taller phone screens
• Integrated Google UMP SDK for user consent management
• Updated underlying library dependencies
• Bug fixes and refactoring
Andoku Sudoku 3 version 1.36.0
Updated At: 2024-03-14
Changes: • Prevent the operating system from changing the app design on some devices when dark mode is enabled in the system settings.
• Updated library dependencies
Andoku Sudoku 3 version
Updated At: 2023-09-06
Changes: • French translation (Beta!)
• Updated library dependencies
Andoku Sudoku 3 version
Updated At: 2022-05-13
Changes: . Updated splash screen for Android 12
. Added option to start/resume game if an existing puzzle gets captured again
. Updated library dependencies
Andoku Sudoku 3 version
Updated At: 2021-12-12
Changes: . Added new Hybrid input method that supports multiple selection
. Re-implemented the statistics page
. Updated overall design, layout and color themes
. Updated splash screen for Android 12
. Added option to start/resume game if an existing puzzle gets captured again
. Updated library dependencies
Andoku Sudoku 3 version
Updated At: 2021-12-09
Changes: . No longer displays banner ads on phones in landscape orientation
. The capture module has been newly implemented using the CameraX library
. The dark theme is now slightly darker
. Update the Dropbox cloud sync back-end due to an upcoming change in functionality
. Updated library dependencies
. Minor bug fixes
Andoku Sudoku 3 version
Updated At: 2021-09-19
Changes: . No longer displays banner ads on phones in landscape orientation
. The capture module has been newly implemented using the CameraX library
. Added hidden option for sharing diagnostic information
. The dark theme is now slightly darker
. Update the Dropbox cloud sync back-end due to an upcoming change in functionality
. Updated library dependencies
. Minor bug fixes
Disclaimer
Official Google Play Link
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