Rennr

Rennr reads your Apple Health data every morning and tells you one thing: what your body is actually ready for today.

Not a training plan. Not a coach. A mirror — showing load, recovery and readiness in plain language, calibrated entirely to you.

DAILY READINESS A single score built from HRV, resting heart rate, sleep and training load. Not compared to population norms — compared to your own baseline. Updated every morning before you lace up.

THREE SIGNALS. ONE PICTURE. Load shows how much stress your training has placed on your body. Response shows how your body is recovering. Surplus shows the gap between the two. Together they tell you more than any single metric.

TOMORROW'S DIRECTION Based on today's signals, Rennr tells you whether tomorrow calls for intensity, easy effort or rest. A direction — not a plan.

EVERY RUN, EXPLAINED Open any session and see heart rate zones, pace, aerobic context and a plain-language summary of what the data actually means.

LONG-TERM DEVELOPMENT Track your aerobic efficiency over 8 weeks. See whether you're getting faster at the same effort — the clearest signal of real fitness progress.

TRAINING BALANCE See how your easy, controlled and hard training is distributed over 7, 14 and 28 days. Built on Seiler's 80/20 principle for endurance athletes.

RACE READINESS Set a race date and Rennr frames every signal relative to your countdown. Peak form, taper, preservation — you'll know exactly where you stand.

RENNR PRO Unlock AI-powered weekly narratives, aerobic efficiency trends, full session analysis and development tracking. AI features powered by Apple Intelligence — processed entirely on your device. No data ever leaves your phone.

Rennr describes — it does not prescribe. All calculations are relative to you, not population norms.

RENNR PRO — SUBSCRIPTION

• Rennr PRO Monthly: USD 4.99, renews every month. Pricing varies by region
• Rennr PRO Annual: USD 34.99 per year, renews every year. Pricing varies by region PRO unlocks AI explanations, efficiency trends, race progression and a weekly coach review. Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage and cancel your subscription in your App Store account settings after purchase. Any unused portion of a free trial period will be forfeited when purchasing a subscription. Privacy Policy: https://www.rennr.net/menu/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

COMPATIBILITY Rennr are designed and works best with Apple Watches, which records workouts, heart rate and HRV directly. Other sports watches are also supported, as long as workouts are synced to Apple Health via the watch's own app. Rennr reads data from Apple Health and requires no separate sign-in with the watch vendor.