SurveyMonkey Intelligence - Usage and download metrics for all mobile apps
DataDistillr - Query, Analyze and Join Any Data Without ETL
Apple App Analytics - Apple's very own iTunes Connect App Analytics
Applysis - Analyse mobile app reviews efficiently, in minutes.
CleverTap - CleverTap offers blazing fast analytics, powerful real-time segmentation, multi-channel messaging, A/B testing and personalization in one unified solution.
Reviews for iOS - Keep track of your App Store reviews