AppData is an independent Facebook application traffic tracking service based in Palo Alto, California. AppData is intended for use by developers, investors, marketers, and analysts interested in tracking application traffic on the Facebook Platform.

It is developed in PHP, utilizes AJAX and Curl for getting the data from external websites. The data is arranged in Flash diagrams which significantly simplifies the perceiving process.

All application data comes directly from Facebook and is updated once per day.