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 is a Sudoku number puzzle game for smartphones and tablets. The game contains Sudoku puzzles of various difficulty levels and detailed instructions. It is aimed at beginners and experts alike. Features: - intuitive navigation - appealing design - auto-save running games - unlimited undo and redo - enter notes - numerous assistance functions - many game variations - nine difficulty levels - cloud synchronization - enter your own Sudoku puzzles - game statistics Game variations: Andoku Sudoku 3 offers numerous other game variants in addition to the standard version of Sudoku: - X Sudoku - Hyper Sudoku - Percent Sudoku - Color Sudoku Mod Info: ● Paid Version Unlock. ● Ads Removed / Disabled. ● Ads Related Activity & Code Removed / Disabled. ● Ads Related Layouts Visibility Gone. ● Analytics / Crashlytics Removed / Disabled. ● Receivers, Services And Provider Removed / Disabled. ● Google Play Store Install Package Removed / Disabled. ● In-App Billing Service Removed / Disabled. ● Play Services, Transport, Firebase Properties Removed. ● All Unnecessary Garbage Folder & File Removed. ● Removed Debug Information (Source, Line, Param, Prologue, Local).