Insights-api-sample is a project mainly written in ..., it's free.
A sample application that runs on Google App Engine that queries the Facebook Insights API to export data about the user's Facebook Applications and Pages.
ABOUT:
This application lets a user download in CSV format the Facebook Insights data about an application or page owned by the user.
This is a sample application that uses the Facebook Insights API. The API consists of an FQL table with four queryable columns and one value column. The query columns are object_id, metric, end_time, and period. Insights are also available for Facebook Pages and Applications via the Graph API at https://graph.facebook.com/ID/insights. For more information, see the FQL Insights developer documentation at http://developers.facebook.com/docs/api#Analytics, or the Facebook Developers Forum at http://forum.developers.facebook.com/ for answers to commonly asked questions.
LICENSE:
The Facebook Insights API Sample Application is licensed under the Apache Licence, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0.html).