Effective July 28, 2026

Privacy Policy

SprintArc has no servers. Your training and health data stay on your devices and in your personal iCloud — none of it ever reaches us.

No accounts · No analytics · No ads · No third-party SDKs

Health data

SprintArc uses Apple HealthKit to do its job. With your permission, it reads heart rate, heart rate variability, resting heart rate, sleep, wrist temperature, and your workout history, and it saves your sprint sessions back to Apple Health as workouts, including heart rate, energy, step, and running metrics.

All processing — including your readiness score and the machine-learning model behind it — happens on your iPhone and Apple Watch. Your health data is never transmitted to us or to anyone else, is never used for advertising or marketing, and is never sold. You control each permission in the Health app and can revoke access at any time.

iCloud

Session history and personalization data are stored in your private iCloud (CloudKit) container. That storage belongs to your Apple Account and is governed by Apple's iCloud terms; we have no ability to read it. You can remove it at any time by deleting SprintArc's data in your iCloud settings or by deleting the app.

Location

SprintArc never requests location access and stores no routes or maps. Distance and pace metrics for outdoor workouts are computed by watchOS as part of the workout and saved only to your Apple Health data.

Purchases

The optional one-time unlock is processed by Apple through the App Store. Your payment details go to Apple, not to us, and we receive no personal information from a purchase.

Crash and usage reports

If you have opted in to “Share With App Developers” on your device, Apple may provide us with aggregated, anonymized crash and usage statistics. That sharing is controlled by you and Apple in Settings → Privacy & Security → Analytics & Improvements.

This website

sprintarc.app is a static page: no cookies, no analytics, no tracking. It is served by Cloudflare, which transiently processes basic request data (such as IP addresses) to deliver and secure the site.

Your rights

Because we process no personal data, there is nothing for us to disclose, export, correct, or delete — your data lives with you and with Apple. If you have questions about your rights under the GDPR or similar laws, contact us and we will help.

SprintArc is not directed at children under 13, and we knowingly hold no personal data about anyone.

Changes

If this policy changes, the updated version appears on this page with a new effective date.

Contact

SprintArc is developed by Ali Almuhanna.
Questions: privacy@sprintarc.app