SurveyMonkey Intelligence - Usage and download metrics for all mobile apps
Uneed - No Code - A list of hand-picked tools for no-code developers
Apple App Analytics - Apple's very own iTunes Connect App Analytics
Mine My Reviews - Analyze 100s of reviews and testimonials in seconds
CleverTap - CleverTap offers blazing fast analytics, powerful real-time segmentation, multi-channel messaging, A/B testing and personalization in one unified solution.
Phyllo - The Universal API for Creator Data