Great premise but lacking because if problematic features
I really loved this game at first, and after a couple of hours purchased the expensive subscription. The problem is that after playing a few puzzles, it becomes very difficult to move to the next month , unless you have solved the puzzles at the most difficult level. So it removed almost all the fun out of it for me ... I contacted the developers about it, but haven’t been dignified with a response after quite some time. So I’ve cancelled my subscription as there are many similar games to this in the App Store, with much better support and consideration for paying users