I’ve downloaded every logic grid puzzle app I could find and this one is definitely one of the best, if not the best. Here’s why:Game options: Provides four levels of difficulty, and the “hard” and “insane” games are actually challenging! Advanced players do not need to complete a certain number of easy levels before the game allows you to play the more difficult levels, so no wasting time on games you don’t want to play. Plus, there are hundreds of games in each of the four difficulty categories, so it allows for more long-term gameplay. ONLY logic puzzles: You do not need to play other games in order to play the logic puzzles. Some logic games I’ve come across make you play other games to collect enough keys, points, whatever it is that you need to “unlock” the logic puzzles. If I wanted to play a different game, I’d play that game - I want to play logic puzzles and this game allows just that, without jumping through hoops to get to them. Ease of use: Simple design that allows some feature changes but doesn’t overwhelm. Easy to figure out and navigate. Thanks for such a great (free!) logic puzzle source!

the zooming is really bad. it’s not a standard zoom UI so pinching feels awkward (the screen moves around and it zooms too fast) and the zoom icon is really slow. also, after a minute or so it automatically zooms back out and I have to re-zoom in. this made it unusable and I deleted the app.otherwise I appreciate the mission of having no intrusive pop-up ads on a puzzle game.

I was pretty happy with the game until the latest update. There are some spelling and other mistakes, but nothing major. After this update, the app will no longer open. There seems to be no way to contact the developer besides leaving this review. Going to their website does not offer any way to contact them.