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Privacy policy
Last updated: 28 September 2026
This policy covers the Enhanced Training Studio app and this website. The short version: your health and training data stays on your device, and we never receive it.
What stays on your device
Everything you log in the app stays on your phone: doses, schedules, lab results, workouts, routes, health data read from Health Connect, and your profile. We have no copy and can't see it.
What we do receive
| What | Why | How long |
|---|---|---|
| Licence key, random device ID, device name, app version | To activate your licence and manage your 3 device slots | While your licence exists |
| Order details from BTCPay (amount, time, invoice ID) | To issue and look up your licence | As long as tax law requires |
| Your email, only if you give it at checkout | To send your receipt and help you find your key | Until you ask us to delete it |
| Basic web server logs (IP address, pages requested) | Security and keeping the site running | Up to 30 days |
We don't use analytics, advertising or tracking cookies, and we don't sell or share data with anyone.
Payments
Payments go through our own BTCPay Server. We don't handle cards. A Bitcoin transaction is recorded publicly on the blockchain by its nature; we don't link it to anything beyond your order.
Google Drive backups
If you turn them on, backups go to a private app folder in your own Google Drive. Only the app on your phone can read them; we can't. Google's privacy policy applies to your Google account.
Health Connect
The app reads the data types you choose from Health Connect, only to show them to you on your device. It doesn't write to Health Connect, and the data isn't sent anywhere.
Maps
When you view a route, map tiles are loaded from OpenStreetMap, which sees the map area being requested.
Your rights
You can ask us what we hold about your licence, and ask us to correct or delete it, by emailing support@enhancedtraining.app. Deleting your licence record means it can no longer be activated.
Changes
If this policy changes, we'll update the date above and note the change in the changelog.