Quadris is a free block puzzle game developed by Kidga UAB for the iPhone. It is an easy-to-play game that aims to improve concentration and provide entertainment. With its simple mechanics and convenient user interface, Quadris offers a mind-challenging experience for players of all ages.

In Quadris, players are presented with blocks pieces that they must draw on the field. The objective is to remove rows and strategically use the Hold Zone for better tactical decisions. The game provides a world leaderboard support, allowing players to compare their achievements with gamers from all over the world.

Quadris is a great time killer and can be enjoyed by both individuals and families. It is a classic block puzzle game that offers a simple yet addictive gameplay experience. Whether you're looking to train your brain or simply have fun, Quadris is a game worth trying.