UXArmy - UXArmy is a cloud-based Remote User Research platform offering Usability testing.
Easy User Test - Easy User Test is a user testing tool that offers the easiest way to test your text and design.
Useberry - User testing feedback and rich analytics in minutes
Fanopia - A social SaaS application that transforms sites into dynamic communities
Peek by UserTesting - Get a free, 5-minute video of someone using your site
Plant - Version control app and plugin for Sketch