One of the most simple yet polished games I’ve played on the App Store. Everything from the sound to the subtle visual effects when you complete a puzzle just creates a truly flawless experience. I’ve been playing this game for about 3 months now and still find it just as relaxing and entertaining as I did the first time I picked it up. If you want a relaxing challenge with a truly polished experience this is the app for you

Really amazing concept and very well thought out design and gameplay. I have spent a lot of time on a lot of apps to pass time at work and I have to tell you that this takes the cake. I’m so used to the same mind numbing solitaire, sodoku, etc. this is different and it makes you think. You’ll get the puzzle wrong and each time you get it wrong the more you want to play. The game isn't “easy” but it isn’t very “difficult” either, it just makes you use your head!

I’m only about 15 or so levels in, but it’s been a while since I’ve seen such a clever little puzzle game. It evokes many of the same thought processes as Sudoku and Kakuro but is a far more visual type of game. You don’t need to keep track of numbers as much so it’s far more manageable and relaxing when you want to enjoy some puzzles but don’t have the capacity for more effort.

This is a unique and fun puzzle/game. It’s increasingly challenging so I don’t get bored. The colors, design, and music are soothing, as well. My first time playing I completed stages 1 and 2. Looking forward to continuing. The puzzles remind me of Sudoku and a game called Flow Free. Two of my favorites. Cardinal offers a new combined twist to these. If you like Flow Free, you’ll definitely like this game.