Privacy policy
Last changed: 11 November 2026
The app
Dum Tek collects no personal data. It has no accounts, no ads, no analytics and no tracking, and it sends nothing to us.
Your settings, lesson progress and own rhythms are stored on your device only. Deleting the app deletes them.
The app does not record sound. It does not use the microphone, camera, contacts or location.
Purchases
Dum Tek Pro is bought through Apple's App Store. Apple processes the payment under its own privacy policy. We receive no name, email address or payment details. The app only learns from the App Store whether Dum Tek Pro is owned.
This website
This website sets no cookies and uses no analytics. It is hosted by Cloudflare, which processes technical connection data such as the IP address to deliver the pages.
If you write to us, we use your email address and message only to answer you.
Changes
If the app starts to handle data differently, this page changes first and shows a new date.