No personally identifiable information is stored on your device or sent back regarding your use of the application.

Application usage information is tracked using Google Analytics for iOS and Android, in accordance with their privacy policy, to allow us to determine which features are most popular, how they are being used, and how we can improve the applications.  No personally identifying data is included in this type of reporting. Please read their privacy policies to ensure that you’re comfortable with the manner in which they collect data.

Crash reports are collected from both iOS and Android applications, and are available to developers in the app store / marketplace respectively. This is standard for all applications sold this way, and contains no personally identifiable information.