ConvertAll - A comprehensive unit conversion program.
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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.
Bootstrap Money - How much money can you make selling software?
Convert for Windows - Convert is a free and easy to use unit conversion program that will convert the most popular units...
Evaluator - A simple calculator app for macOS and Windows