Privacy Policy
Last Updated: March 2026
Your Privacy Matters
ArnoldSplit is designed with privacy as a core principle. Your workout data stays on your device. We only collect what's necessary for account features and app improvement.
What We Collect
- Email address — for account authentication (via Supabase)
- Login timestamps — to help you see when your account was accessed
- Anonymous usage analytics — app launches and feature usage (via TelemetryDeck, no personal data)
- Attribution data — how you discovered the app (via AppsFlyer, for marketing optimization)
We do NOT collect or access your workout data, exercise history, or personal records. These never leave your device unless you explicitly enable cloud sync.
Account & Authentication
If you create an account, we use Supabase for secure authentication. We store your email address and login history to help you manage your account and see when it was last accessed. Your account data is stored securely and encrypted at rest.
Data Storage
- Workout data — stored locally on your device only
- Exercise history — stored locally on your device only
- Personal records — stored locally on your device only
- Account data — stored securely on Supabase (encrypted)
- Analytics — processed by TelemetryDeck (privacy-first, no personal identifiers)
- Attribution — processed by AppsFlyer (marketing analytics)
When you delete the app, local data is removed. To delete your account data from our servers, use "Delete Account" in Settings or contact us.
HealthKit Integration
ArnoldSplit may request access to Apple HealthKit to sync your workout data. This data is only read or written with your explicit permission and is handled according to Apple's HealthKit guidelines. We never transmit HealthKit data to external servers.
Third Parties
We use trusted services for specific features:
- Supabase — account authentication & login history
- TelemetryDeck — anonymous, privacy-focused analytics
- AppsFlyer — marketing attribution and campaign analytics
- Apple — Sign In with Apple authentication, HealthKit integration
These services have their own privacy policies. We never sell or share your personal data for advertising purposes.
Your Rights
You have the right to:
- Access your personal data
- Request deletion of your account and associated data
- Opt out of analytics (via app settings)
- Export your workout data
Contact
If you have questions about this privacy policy, please contact us at privacy@arnoldsplit.app