Crosslogic Ultimate is the PathPix Pro of Picross: lots of levels of an addictive puzzle game that will keep you busy for hours. While there are plenty of Picross-style apps on the App Store, Crosslogic stands out due to its superior controls.
Picross puzzles, also known as nonograms, involve placing black tiles on a grid to match the numbers along the top and side. Each group of numbers represents the formation of the blocks. For example, 3-4-5 would mean three boxes, some amount of space, four boxes, some amount of space, and five boxes. As simple as this sounds, complex puzzles force you to decipher some tough situations logically, and as you play new tricks will appear.