Privacy policy
Last changed: 11 November 2026
The app
Dum Tek has no accounts and no ads. It does not ask for your name or email address and does not track you across other apps or websites.
Your settings, lesson progress, own rhythms and recordings are stored on your device only. Deleting the app deletes them. A recording or a rhythm leaves the device only when you share it yourself.
Usage statistics
To see what works and what does not, the app sends anonymous usage events. Each installation gets a random number that is not connected to your name, Apple Account or advertising ID.
What is sent: that the app was installed or opened, that the Dum Tek Pro page was shown and from where, that Dum Tek Pro was bought or restored, which lesson level was passed, that an own rhythm was saved (only its length, not its content or name), that a recording was saved (only its length, the number of hits and layers, and whether a rhythm played under it), that a recording or a rhythm was shared (not its content or with whom), and which instrument was chosen. With each event come the app version, the device model, the system version and language, and the country derived from the connection.
The same random number decides which version of a screen you see when we compare two versions.
The events are processed for us by PostHog on servers in the European Union. They are not sold, not shared with advertisers and not combined with data from other apps.
A recording in the app stores which pads you hit and when. The app does not use the microphone, camera, contacts or location.
Shared rhythms
When you share a rhythm, the app makes a link to dumtek.app/r that holds the rhythm itself: its name, pattern and tempo. Whoever has the link can see and open the rhythm. Nothing is stored on our servers.
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.