iZATT has released the latest addition to its Signal Series of apps for the iPhone and iPod touch, Bumps. The program works as a teaching aide for learning the Braille system. Users can view all 26 dot patterns on the screen, with or without the corresponding English letters displayed. All of the patterns can be viewed on one screen, or each can be presented full-screen. Users can also enter words to see how they are displayed in Braille.

A flash card mode displays the letters in random order, with the English translation appearing after a specified time. Bumps is available from iTunes for $1.