
Dan Schurman
I enjoy this app and play it daily. sometimes I get frustrated when there are no obvious moves and you just have to take a guess. my biggest frustration is the Ali Express advertising. it is truly a pain. it is very difficult to close the ad without going to the Ali Express site. it is so bad that when an Ali Express advertising comes up, I now simply close the Sudoku app for 24 hours. if they would get rid of AliExpress advertising I would rate this 5 stars.

Joanna Gawn
I'm very much enjoying the variety of games as well as the different levels. As usual Kristanix offer a good app, and I knew I'd stick with it so upgraded. I seem to have issues, though. 1) I don't seem to get the stars for some of the goals I complete. 2) I find it frustrating that the only way to see the goals/progress is to start a game as the goals are within the game menu, not Settings. 3) Sometimes the hard games seem quite a bit easier than medium & easy! If these were fixed I'd rate 5*.

A Google user
Incredibly addictive!! And good exercise for the brain The free version does have ads, but they're for other games, are very short, and aren't so frequent as to be annoying. (Very rare!) However, I'm going to upgrade anyway because these guys (Kritanix) do such a great job with their other app (Jigsaw Puzzle Epic), have been very responsive on the few occasions I emailed with questions, and, hey, GOOD software development isn't easy. Given how well they do, they deserve to be paid IMHO.
32 people found this review helpful