Ultraflow: A minimalist yet complex puzzle game. You need to bounce a ball through an obstacle course and eventually land in a hole. Of course, the number of bounces is limited. There are 99 levels of play to test your aim and patience.

Price: Free with in-app purchases

KAMI 2: There are over 100 hand-crafted puzzles made up of colourful, connected triangles that offer challenge as well as relaxation. This one will take you on a mind-twisting journey that combines logic and problem-solving.

Price: Free with in-app purchases