Support

Open Arc and follow the onboarding. Tell Arc about your experience and your goal — a target race date or general fitness with no race — and it builds an adaptive plan for you. You can change your goal or rebuild your plan anytime in Settings.

Arc reads recovery and activity signals such as heart-rate variability, resting heart rate, sleep, and completed workouts to calculate your daily readiness and keep your plan accurate. You grant access in the Health permission sheet during setup, and you can review or change it anytime in Settings → Health → Data Access & Devices → Arc.

No. Arc works on iPhone alone. An Apple Watch adds glanceable workouts and readiness complications, and improves the quality of the recovery data Arc reads from Apple Health.

Readiness is a daily estimate of how recovered you are, derived from signals like HRV, resting heart rate, and sleep. Arc uses it to decide whether to keep, ease, or push the day's training. Tap into the readiness detail in the app to see what's driving it.

Arc adapts. When your recovery, fitness, or schedule shifts, it adjusts upcoming workouts so you train hard when you're ready and back off when you're not. Each workout includes a short rationale explaining why it's there.

The AI coach runs entirely on your device using Apple Intelligence, grounded in your own plan and readiness data. Your questions never leave your phone. It requires a device that supports Apple Intelligence; if the on-device model is still downloading, give it a few minutes and try again.

Yes. Arc can import completed activities from Apple Health, intervals.icu, and Strava so your plan reflects the training you actually did. Connect your accounts in Settings.

Yes. Arc can export your training week to your calendar so workouts fit around the rest of your life.

Arc Pro unlocks adaptation that adjusts to your recovery, readiness from Apple Health, recovery and training-load trends, and the on-device AI coach. New subscriptions start with a 7-day free trial.

Subscriptions are handled by the App Store. On your iPhone, open Settings → [your name] → Subscriptions, select Arc, and manage or cancel there. Cancelling keeps Pro active until the end of the current billing period.

Open the Arc Pro screen and tap Restore Purchases. Make sure you're signed in to the same Apple Account you used to subscribe.

All purchases are processed by Apple, so refunds are handled by Apple too. Visit reportaproblem.apple.com to request a refund for an App Store purchase.

On your device and in your own private iCloud. Arc does not collect your health, plan, or readiness data, and does not track you across apps or websites. See the privacy policy for details.

Deleting the app removes its on-device data. Data synced through iCloud can be removed in Settings → [your name] → iCloud → Manage Account Storage. You can revoke Health access anytime in the Health app.