Misses the point.
There are two things to judge a nonogram program on: quality of the controls, and quality of the pictures.
The controls are mediocre at best. Nonograms involve working with an often-large grid, and there are well-established patterns for zooming and scrolling around a grid on the iPhone. Instead, I got a set of cursor-buttons and an unzoomable grid for all but the smallest puzzles, and a button for marking cells. The method for marking more than one cell is clever, but didnt work well for me.
The pictures, however, are what destroy this app: there are none. The puzzles are all random blobs of black and white, with no coherent image to see once the puzzle is completed. Given that the entire appeal of this sort of puzzle is in using logic to reveal a hidden image, its just useless to have a nonogram app that doesnt actually have images.
Jason Wodicka about
Ultimate Nonograms