UseResponse - Open-source, self-hosted customer feedback software, live chat and helpdesk system that you can install on your server. Organize documentation using knowledge base and get feedback from social networks with centralized system
Balto - Easy feedback with screenshot / videos for your beta apps
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.
SessionStack - Record and replay web app issues. See them the way they happened to end users.
Survicate - Collect feedback on your website and find out more about your visitors.
Video Contact Forms by Typeform - Get 10x more personal with your site's visitors from Day 1