Privacy Policy

Last updated: February 2026

Data Collection

Built To Run does not collect, transmit, or store any personal data on external servers. All your data stays on your device.

Data Sources

Apple Health

The app reads running workout data (distance, duration, heart rate, calories) from Apple Health with your explicit permission. It does not write to Apple Health.

Strava

The app connects to your Strava account via OAuth 2.0 to read your running activities. Your Strava access tokens are stored securely in the iOS Keychain on your device. The app only requests read access to your activities and profile.

Local Storage

• Run data is cached locally using SwiftData for offline access and performance
• Settings and preferences are stored in UserDefaults on your device
• Date of birth (if provided) is stored locally for heart rate zone calculations

Third-Party Services

The app communicates only with:

• Apple HealthKit — to read workout data (when selected as data source)
• Strava API — to read activity data (when selected as data source)

No analytics, crash reporting, or advertising SDKs are included.

Data Deletion

You can clear all cached data at any time from Settings → Data Cache → Clear Cache. Disconnecting from Strava removes stored tokens. Deleting the app removes all local data.

Contact

For privacy questions, email support@builttorun.net.