Instabug - The top apps in the world rely on Instabug for beta testing, user engagement and crash reporting.

Canny - Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.

UserTest.io - User testing made simple. High-quality, affordable user testing solutions from real users, here in the UK. Improve your usability!

UserTesting.com - Usability testing has never been easier. Get videos of real people speaking their thoughts as they use websites, mobile apps, prototypes and more!

WebAsk - Learn to read the minds of your customers, co-workers and followers with this fully-customizable and light-weight toolkit for collecting and processing user feedback.

Userbrain - Easy, fast, and affordable user testing for websites and prototypes.