look Puzzle Trains Your Brain
There are plenty of silly games available for iOS devices. If you want to give your brain some training, you should give look a try. It is a fun perspective puzzle that combines with relaxing music to sharpen your brain. The game has 70+ levels to improve your spatial ability.
The game has a clean interface and is nice to have when you need to kill a bit of time. We would love to see even more challenging levels though. You can download it for $0.99.