APPlyzer - Professional rankings & keywords for app developers, marketers and publishers.
appfigures - Cross-platform app store analytics for all of your mobile apps.
Sensor Tower - Sensor Tower is a platform for app store optimization and app industry intelligence.
Amplitude - Mobile analytics: come with questions, leave with answers
ASO by 2Stable - Find the most relevant keywords for your app
Kochava - Mobile attribution and analytics platform for app marketers