Numi App - Numi is a beautiful text calculator for Mac.
ConvertAll - A comprehensive unit conversion program.
Soulver - Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.
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.
SymCalc - Symbolic Calculator - Math toolbox for iOS. Advanced calculator features with a tape-like history, not requiring internet...
VATCalculators.co.uk - Free UK VAT calculator. We have created this VAT calculator as a free to use tool for calculating VAT rates in the UK.