Roto16 Publisher: John Swensen Genre: Entertainment Released: 4 Dec, 2013 Size: 3.4 MB Price: FREE! Click here to request a review of this app App Store Info Description Roto16 is a 21st century update to the age old 15 puzzle. Rather than shifting pieces to an empty spot, instead choose a corner where 4 tiles meet and rotate around that point. Screenshots Screenshot 1 of 2