Training app: privacy policy

Plain English: we don't collect your data. The app works with services you choose, from your phone.

Last updated: 30 October 2026

Who we are

The Training app (“the app”) is made by Protoporos Ltd (“we”, “us”), a company registered in England and Wales (company number 12023873). Contact: [email protected].

The short version

What the app handles, and where it goes

DataWhere it comes fromWhere it goes
Training plan, activities, wellness (sleep, heart rate, HRV, readiness, weight, blood pressure)Your intervals.icu account, your watch via Health Connect, devices you connectYour own intervals.icu account, which you control
Recorded rides (power, cadence, heart rate, speed)Your trainer, power meter and heart-rate sensor over BluetoothYour intervals.icu account, and Strava if you connect it
Goal and plan settings, rest daysYouA settings note in your intervals.icu account
Health conditions you tickYouYour goal settings in your intervals.icu account, used to shape the plan
Date of birth, height, cycle tracking, typed blood-pressure readings, strength weightsYouStay on your phone. Cycle data is encrypted. Only your cycle phase is shared with intervals.icu, and only if you turn that on
API keys and sign-in tokens (intervals.icu, Strava, Withings)YouStay on your phone, encrypted with the Android Keystore
LocationYour phone’s GPSUsed only while an outdoor session is open, for pace and distance. Only the session’s distance and average pace are saved, to your activity notes

Permissions

Third-party services you connect

When you connect them, the app sends data to these services under their own privacy policies:

Backups

You can make a backup file of what’s stored only on your phone. It is encrypted with a password you choose, and saved wherever you pick (for example your own Google Drive). We never receive it.

Your rights and deleting data

Children

The app is intended for adults (18+).

Changes

If this policy changes, we’ll update this page and the date above.