★ Top Developer (awarded 2011, 2012, 2013 and 2015)★
Sharing the same top quality gameplay, graphics and interface as the rest of our app library, AI Factory's Sudoku is an essential download for any Sudoku or brain training fan! You never need a paper puzzle again!
- 2500 Sudoku puzzles over 5 difficulty levels, covering easy through to medium, hard, and extreme levels
- Various different modes for notes input to cater for all playing styles
-Pre-fill notes option
-Auto-clear notes option
- Optional hints, undo and board aids
- 4 fonts/sets of symbols & 3 boards
- Statistics tracking, including fastest times, average times and completion%for each level
- Super smooth interface and graphics
- Suitable for both Phones and Tablets
This free version is supported by 3rd party ads. Ads may use internet connectivity, and therefore subsequent data charges may apply.
Minor fixes
Improved rendering performance, updated SDKs
Further adjustments to ads for our own apps.
Reduced refresh rate of ads for our own apps.
Ad related updates, with increased minimum time between full screen ads.
Significantly improved hint system
Fixes bug with timer not starting in all situations
Minor fixes
Minor fixes
We're changing our app names in line with new Google Play policies: "Sudoku Free" is now "Sudoku". "Sudoku" (paid version) is now "Sudoku Pro".
Workaround for possible WebView bug on Android 9
The app no longer requests Storage permission for stats backup, so therefore stats no longer automatically backup. Instead there are now import and export stats options on the stats screen. Most users were not accepting the storage permission, and this new method of importing/exporting stats can be used without that permission.
Minor UI changes
Minor updates
Ad stability improvements
Minor UI fixes
Fixes minor UI issues on Android 9
Fixes potential issue with stats backup on Android Oreo
Fixes formatting issues with some languages, updates to ad software
1.49: Updated to new Android permission model, ad software updates
1.471: Ad stability improvements.
1.46: Ad stability improvements.
