Firebase Crashlytics - The most powerful, yet lightest weight crash reporting solution for iOS and Android developers. | Crashlytics
Heap - Analytics for web and iOS. Heap automatically captures every user action in your app and lets you measure it all. Clicks, taps, swipes, form submissions, page views, and more.
Sentry.io - From error tracking to performance monitoring, developers can see what actually matters, solve quicker, and learn continuously about their applications - from the frontend to the backend.
Nicereply - Improve customer service and customer experience with Nicereply - online customer satisfaction survey software, including CSAT, NPS & CES 2.0.
Mixpanel - Mixpanel is the most advanced analytics platform in the world for mobile & web.
ClickCease - ClickCease is a click fraud detection and protection solution.