Offline classic style Sudoku is a logic-based, combinatorial number-placement puzzle game. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9. The sudoku logic puzzle is completely free and no advertisement is used.
It's secure to download the app. Kersofts is the official developer of Sudoku Ultimate PRO which can be found in the Board Games category. Over 100K users downloaded and installed the game and the most recent release was on Nov 13, 2019.
According to the latest information, this application is rated 4.7 on Google Play. It's free to get the installer of Sudoku Ultimate PRO, also, you can have a look at users' reviews on Droid Informer. The app runs on Android 4.0.3 and higher.
Some users have paid attention that there are some benefits, they are a nice layout and simple functionality.