For runners & cyclists
Arc builds adaptive training plans that adjust to how your body is actually recovering — then explains every workout, so you always know why you're doing it.
Free to start • Arc Pro from a 7-day free trial • iPhone & Apple Watch
Arc reads your recovery signals and reshapes your week so you train hard when you're ready and back off when you're not.
Your plan adjusts automatically as your recovery, fitness, and schedule change — no spreadsheets, no manual rebuilds.
A daily readiness score built from your heart-rate variability, resting heart rate, and sleep — straight from Apple Health.
See training load and recovery move together over time, so you can spot fatigue before it becomes an injury.
Ask questions about your plan and get answers grounded in your data — running entirely on-device with Apple Intelligence.
Build toward a race date, or train for general fitness with a no-race plan. Beginner-friendly onboarding gets you started fast.
Today's workout and your readiness on your wrist and Home Screen — glanceable, always current.
Pull in completed workouts from Apple Health, intervals.icu, and Strava so your plan reflects what you actually did.
Send your training week to your calendar so workouts fit around the rest of your life.
Workout rationale, strength detail, and appearance themes — a polished, native experience built for iOS.
Your health is personal. Arc is built so your data stays yours — we never collect it, and we never track you.
Download Arc, connect Apple Health, and get your first adaptive plan in minutes.
Free to start • Arc Pro from a 7-day free trial