For all the Sudoku apps I’ve played with, the ones I like the most keep it simple and focus on putting numbers in boxes. Flash graphics, fun colors, wacky fonts? Nope. I like it plain.
It really doesn’t get any more plain than OpenSudoku.
OpenSudoku is a Google code project created by Romario333, and seeks to be an open source version of my fave number puzzle game for Android.
Firing the app up, you’re greeted by a screen that asks what difficulty you’d like to play.
After you select difficulty, a menu of puzzles allows you to pick which board you want to work on. It does remember your progress and time spent on puzzle.
While there aren’t any “flashy” features, it’s still a really robust problem solving app. Puzzles can be downloaded from a community of sudoku players, or entered directly by hand. I tend to enter by hand, as I get puzzles from a puzzle of the day sight.
There are several input modes, including pop up, and numbers at the bottom of the screen, and there are options to “pencil” in notes.
All in all, this is my favorite sudoku app. Simple, straightforward, and did I mention it was free? Oh right. It’s totally free.