What are some alternatives?
When comparing Apptica and Sensor Tower, you can also consider the following products
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.
Mobile Action - Mobile Data Intelligence & Actionable Insights.
AppTweak - AppTweak offers personalized app marketing reports that help companies to increase their app store visibility.
Apptopia - Apptopia provides app store downloads, revenue, and SDK data for every mobile app & every publisher in the world
APPlyzer - Professional rankings & keywords for app developers, marketers and publishers.