Gemtris – Tetris style game perfectly adopted to the touchscreen devices – free

Gemtris is a 3 match and Tetris (Blockout)-style game for all ages. The aim of the game is to form groups of 3 or more gems of the same color in a row, column or at angle. The more gems of the same color you put in a line, the higher the score.

https://play.google.com/store/apps/details?id=com.tspmobile.gemtris