Instabug - The top apps in the world rely on Instabug for beta testing, user engagement and crash reporting.
Softorino YouTube Converter - Download YouTube video & audio. Watch and listen offline
UserTest.io - User testing made simple. High-quality, affordable user testing solutions from real users, here in the UK. Improve your usability!
Yout - YouTube to Mp3 Converter
Userbrain - Easy, fast, and affordable user testing for websites and prototypes.
You-Get - Command-line utility to download media contents from the web