Sanovar Atwal
It's OK but is badly designed. It has no undo button, so if you make a wrong move in a game then you have no way to undo your mistake to try again. There also should be a hint option and a restart game option. Another issue is that there is the back button on Androids and an X button in the corner, you have to play this in landscape and sometimes your finger may accidentally hit the back or x button and you come out of the app, when you get back in it starts a new game, it needs resume option.