UserVoice - UserVoice integrates easy-to-use feedback, helpdesk, and knowledge base management tools in one platform that empowers users to speak and companies to understand.
PlaybookUX - PlaybookUX is an affordable user testing and interview software that recruits the right participants, schedules, transcribes and analyzes your research.
KISSinsights - Give customers a way to tell you what they need. Get real-time feedback from your customers on your website, free.
Survicate - Collect feedback on your website and find out more about your visitors.
Usabilla Visual Survey - Gather feedback at any stage of the design process.
FeedBear - The smartest way to manage feedback from your customers