Best Sudoku app ever.
Now that I gotten a better phone, I can give it 5 stars now. Everything I want in a Sudoku game including penciling in unknowns. I think some people are cheating on their times however, by pressing print, pausing, solving it offline, then putting in their numbers. Basing this assumption on the fact that when a certain puzzle is so easy to solve, there are still 90% players faster?
This is the easiest to use Sudoku app. 4 levels of difficulty. Has a setting that allows you to put more than one number in a box. The numbers are then considered pencil marks and you can clear just the pencil marks. Saves your place in a puzzle. You don't get a new puzzle unless you complete it or change the level of play.
I've been playing more than 12 years. Just wish the 16x16s were on the app. Love it. I recommend this app to all my friends because it is so easy to use and the view is clear and understandable. I also wish there was a paid version with no ads.
Overall, I'd give it a straight 5 stars. Very simple nothing fancy and everything works great. I would definitely suggest this variant of sudoku to everyone else.
Small bug fixes.