DiffImg is a simple image comparison tool which takes two RGB images with the same size as input. Some statitics are computed, and the positions at which pixels differ are displayed as a color mask.
HotShots is an application for capturing screens and saving them in a variety of image formats as well as adding annotations and graphical data (arrows, lines, text, etc.).
An app that recommends places in New York.
A generic memoization framework.