GetSatisfaction - Get Satisfaction is the leading customer engagement platform that helps companies build better relationships with their customers and prospects, through the best online customer community.

1Flow - The leading in-app survey platform for mobile apps and websites to collect in-the-moment user feedback. Measure NPS, CSAT, CES, and PMF scores and gather feature-specific user feedback to improve your product.

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

Heeduser - Heeduser is the customer engagement platform that helps companies build better relationships with their customers and prospects, through the better online customer community

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.

Kraftful Analytics - Kraftful is a product analytics platform for apps that control devices.