piHappiness - A complete customer feedback app offering real-time feedback via emoticons. Our Custom feedback software captures core human insights in mere 30 seconds.
LimeSurvey - LimeSurvey: the Online-Umfrage Tool - Open-Source Suryeys
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.
Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
KeySurvey - KeySurvey provides survey and questionnaire tools.
Google Forms - Simple web forms from Google.