Whistler is built with Expo (https://expo.io/). Expo collects very little data, and nothing that identifies end-users of Whistler. The service is primarily used for receiving app updates. No personal information is ever sent to Expo servers. Expo's full privacy policy can be found here: https://expo.io/privacy-explained.

Messages sent in the app are stored on Whistler's servers for the duration of the game they were sent in. At the end of the game, these messages are deleted. These messages are not associated with you in any way other than with the username you choose to use in the app. This is the only information that goes to or is stored on Whistler's servers. 

For any questions related to privacy, please contact Dayton Ellwanger at daytonellwanger@gmail.com.