DW Audio (the app) is provided by Michal Moskal, pending transfer to an appropriate account of Diamond Way Buddhist Centers USA, once created.
The federated login process, and the data collected during it, are subject to a separate privacy policy, explained here https://www.diamantweg-buddhismus.de/impressum While the app doesn't use cookies, the login process might.
The app collects status information (number of downloads, play position, total number of seconds listened to, etc.) for every lecture you listen to. You can also attach notes to particular play positions in a given lecture. All this information is stored on our servers and is available to you, as you login from various devices using the same user name.
None of this information is used for any other purpose.
Please direct GDPR and data deletion requests to dwa@diamondway.org.