ConvertAll - A comprehensive unit conversion program.
Calculator by Xlythe - Calculator is a simple 4 function calculator.
Tweetbot - Sync your timeline across your iPhone, iPad, and Mac. Mute tweets by user, hashtag, tweet source, or keywords (including regex). 3rd Party support for image, video, read later, and timeline sync services.
HEXelon MAX - HEXelon MAX is a science calculator. It solves math expressions like: Sin(Pi)-Root(-8;3)+3.
multiConvert - multiConvert is a simple to use small sized unit converter for converting any unit into another one and getting the real time result on the main window of this program.
PCalc - PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody...