Simple Sudoku (com.tomfusion.simplesoduko) on Google Play
A simple free Sudoku game. Features include:* randomly generated boards* various difficulty levels* highlight selected number (setting)* display reaming number count (setting)* highlight incorrect cells* show error count (setting)Email issues/suggestion to support [at] tomfusion.com.Feature image: [Public domain], via Wikimedia Commons (B. Meyniel is the author of the puzzle shown)