Numi App - Numi is a beautiful text calculator for Mac.
XE.com - XE.com Inc. (XE) is a Canadian online foreign exchange services company.
ConvertAll - A comprehensive unit conversion program.
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.
Calculator++ - Calculator++ is an advanced, modern and easy to use scientific calculator.
Yahoo! Finance - Currencies Center - Currency Converter from Yahoo! Finance.