
Each week, Apple chooses an "App of the Week" to highlight, which means it can be downloaded for free. This week's pick is a puzzle game named Colorcube, which is normally priced at $0.99 and has never been free before since its July 2016 release.
Colorcube requires players to turn differently shaped pieces to blend colors and solve puzzles. The game is described as a "minimal yet visually stunning puzzler" with more than 250 levels. Apple's editorial description for the pick is below:

Colorcube can be downloaded for free for the next seven days, and after that, a new App of the Week will be chosen. [Direct Link]Calming colors? Check. Ambient soundtrack? Check. A refreshingly simple premise? Check. Colorcube has all the right ingredients for the perfect chill-out session at the end of a long day. With hundreds of levels to complete, this deceptively challenging game is as stimulating as it is serene... and surprisingly compelling to boot.
Article Link: Puzzle Game 'Colorcube' Available for Free as Apple's App of the Week