Testlio - Testlio is a community of expert testers that help companies release their apps with highest confidence
Maze - Beautiful & actionable analytics for InVision prototypes
GoReplay - GoReplay is an open-source tool for capturing and replaying live HTTP traffic into a test environment.
ProtoPie - ProtoPie is the easiest tool used to turn your UI/UX design ideas into highly interactive prototypes for mobile, desktop, web, all the way to IoT.
LogiGear - LogiGear provides software testing solutions including test tools, services, and training, and a defect tracking.
W3C Mobile Checker - Make websites work better on mobile devices