Preely - Remote user testing and rapid prototyping
Easy User Test - Easy User Test is a user testing tool that offers the easiest way to test your text and design.
AirWatch by VMware - AirWatch is an enterprise-grade mobile device management, mobile application management and mobile content management solutions.
Useberry - User testing feedback and rich analytics in minutes
Marvel - Turn sketches, mockups and designs into web, iPhone, iOS, Android and Apple Watch app prototypes.
Peek by UserTesting - Get a free, 5-minute video of someone using your site