Futoshiki Light: free puzzle app game for iphone, ipad

Futoshiki Light is one of many puzzle apps that are all very similar.


The object is to form a Latin Square: each row & column must have the numbers 1-4.  The inequality symbols must be true.


I particularly like the grids that have no numbers - just inequality symbols.


The 5x5 boards are not free.  Give it a test run. 
https://itunes.apple.com/us/app/futoshiki-light/id290344883?mt=8