Go Fucking Do It - Set a deadline and a price. If you fail, you pay.
Acquainted - A simple tool to create conversational polls and surveys
AbTest.io - A free url shortener with A/B testing features
Decision Jam - Make better decisions quickly with your team
WebCodeSniffer - Validate your code for consistency with a coding standard.
appenguin - Turn the most complex web application or website to into an Android app in minutes, for free!