SumSudoku: Killer Sudoku APK 2.0.0

5 stars: Absolutely my favorite game app! The interfaces are intuitive. The games are as challenging as you want. Lots of features that you can use or not.
5 stars: This game is great and has just gotten better over time. The few things I was missing in gameplay I either found were already there or got added over time (such as auto filling pencil marks and crossing off combinations). My one remaining suggestion would be to offer different colors to show selected numbers. The yellow on beige combo is super hard on the eyes at times.
3 stars: Fun and interesting sudoku game. There are 90 free levels to play, anything after that is paid for content. Biggest con is that the price for the amount of content is too high, personally, I believe more free levels should be released in between multiple paid levels to entice longer play and player retention.
2 stars: Not a bad program but just ok. The levels are not consistent; easy is sometimes hard and hard sometime easy and they dont differ much. And the interface could be improved. You have to put your notes in every cell and cant select a few cells to do that in one go.
2 stars: I've enjoyed solving this puzzle on paper for years, which is better than using this app. The possibilities listed for the sum do not change, even when there is a partial answer entered, unlike the other Conceptis puzzle apps.