Completely free: no ads or micro-transactions!
Cubik is an easy-to-grasp, difficult-to-master game, in which you must turn off all the lights on the grid. Lights are toggled by tapping them, but each time you do, it will also toggle the most immediate light to the left, right, above and below. Warm up through the 20 pre-designed campaign levels, then beat out your top score in Survival mode, or face the infinite chaos of Endless mode, where each level is more complicated than the last.
Cubik supports iPhone 4 and newer, as well as iPad 2 and newer.