Privacy Policy
Last updated: August 2026
Overview
This Privacy Policy explains what personal data the 42Runs app ("the App", "we", "us") collects, why, and how it's handled. We built the App to help you train and race better — not to sell your data, and we don't show ads or share your data with advertisers.
Who We Are
42Runs is developed by 42runs.eu, based in the Netherlands. You can reach us at contact@42runs.eu for formal data-protection requests.
What We Collect
Account information: your email address, display name, and (if you add one) a profile photo.
Training data you enter: races you're planning, workouts you add manually, your goal times, and your unit preference.
Training data from intervals.icu: if you choose to connect your intervals.icu account, we read your activities (type, distance, duration, date) and wellness metrics (like CTL/ATL/Form and VO2max) from intervals.icu, and we can push structured planned workouts to intervals.icu on your behalf so they sync to your watch.
Your intervals.icu credentials: your intervals.icu Athlete ID and API key are stored securely and are only ever used by our backend (Cloud Functions) to talk to intervals.icu on your behalf — the App itself, and anyone who might access our database directly, cannot read your API key back out.
We don't collect location data directly — any distance or route information comes from activities you've already recorded elsewhere (e.g. on your Garmin) and synced via intervals.icu.
Why We Collect It
To provide the App's core features: showing your upcoming races, generating and personalising training plans, tracking your performance over time, and keeping your calendar in sync with your watch.
Who We Share It With
- Firebase / Google Cloud: our infrastructure provider, hosting your account data, authentication, and files (like your profile photo). Google processes this data on our behalf under its own data-processing terms.
- intervals.icu: only if you choose to connect it, and only the data needed to read your activities/wellness and push planned workouts.
We do not sell your data, and we do not share it with advertisers or data brokers.
How Long We Keep It
We keep your data for as long as your account is active. If you delete your account, we delete your data from our systems, other than what we're required to retain by law.
Your Rights
Depending on where you live, you may have the right to access, correct, export, or delete your personal data, and to object to or restrict certain processing. You can update most of your data directly in the App (Athlete tab and Settings), disconnect intervals.icu at any time, or contact us at contact@42runs.eu for anything else, including deleting your account.
Children
The App isn't intended for children under 16, and we don't knowingly collect data from them.
Security
We rely on Firebase's security infrastructure (encrypted storage and transport, access-controlled databases) to protect your data. No system is 100% secure, but we take reasonable steps to keep your information safe.
Changes to This Policy
We may update this Privacy Policy from time to time. If we make material changes, we'll let you know in the App.
Contact
Questions about your data or this policy? Reach out at contact@42runs.eu.