Appstark - Appstark is a mobile app feedback and support software.
AppsMonk - Real time in-app chat for mobile applications.
Apptentive - Apptentive’s mobile customer engagement software helps companies listen to, engage with, and retain their customers.
Instabug - The top apps in the world rely on Instabug for beta testing, user engagement and crash reporting.
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.
AskingPoint - AskingPoint is an app analytics API for iOS and mobile app developers that includes an embedded Rating Widget.