Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Zonka Feedback - Top feedback app designed to collect customer feedback on iPad & Android tablets, Online Surveys on Website, Mobile, Email & SMS. Track NPS & Other Metrics.
HelpSite - HelpSite is a simple service to help your setup the perfect support centre or help site.
KeySurvey - KeySurvey provides survey and questionnaire tools.
Manula - Manula is an online software for creating user manuals.
FeedbackServer - asp.net survey software Web based and open source software, for purchase or hosted, written in ASP.NET for Nsurvey