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.
Financial Toolbelt - Powerful calculators that help you improve your finances
unitMeasure - A sleek unit calculator for android
Bootstrap Money - How much money can you make selling software?
Unit Converter - It's More easy to covert the UNITS now with the APP
Evaluator - A simple calculator app for macOS and Windows