AppStor.io - Free useful tools and services for App Store developers / marketing managers and owners.
Owler - Owler is a crowdsourced data model allowing users to follow, track, and research companies.
TheTool - App Store Optimization made simple and beautiful.
Whatagraph - Whatagraph is the most visual multi-source marketing reporting platform. Built in collaboration with digital marketing agencies
ASO by 2Stable - Find the most relevant keywords for your app
QlikSense - A business discovery platform that delivers self-service business intelligence capabilities