Codeless Mobile Analytics - Track engagement in your mobile app without writing code
Apple App Analytics - Apple's very own iTunes Connect App Analytics
Fabric by Google - Real time alerts and analytics for apps powered by Crashlytics and Answers.
CleverTap - CleverTap offers blazing fast analytics, powerful real-time segmentation, multi-channel messaging, A/B testing and personalization in one unified solution.
AppMetrica by Yandex - Free ad tracking & full-stack app analytics for mobile apps.
Amazon Mobile Analytics - Amazon Mobile Analytics lets you can measure app usage and app revenue.