Outbound Apps by Intercom - Embed apps right inside your messages
Appstark - Appstark is a mobile app feedback and support software.
Semrush App Center - Power your marketing by connecting your apps to Semrush data
ExitInput - ExitInput improves the site conversion by getting constant feedback from site visitors as they leave.
Hotline - In-app chat,real-time engagement & self-service for your app
AppsMonk - Real time in-app chat for mobile applications.