Apple App Analytics - Apple's very own iTunes Connect App Analytics
APPlyzer - Professional rankings & keywords for app developers, marketers and publishers.
Adapty - Low-code price personalization for in-app subscriptions
Segment Sources - Load CRM, billing, and other cloud data to your Warehouse
Qonversion - The subscription data platform for mobile-first companies
App Annie - App Annie is a marketing analytics tool available for apps of all kinds. With App Annie, you can track sales, traffic, and a variety of other factors pertinent to monitoring an app's trajectory.