APPlyzer - Professional rankings & keywords for app developers, marketers and publishers.
Sensor Tower - Sensor Tower is a platform for app store optimization and app industry intelligence.
ASO by 2Stable - Find the most relevant keywords for your app
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.
TheTool - App Store Optimization made simple and beautiful.
YOURLS - YOURLS is a website that contains all the tools you need to create and launch your very own URL shortener. URL shorteners like bitly or TinyURL are fine for public use, but they offer limited options in terms of URL customization.