Helix: AI Fitness Coach

Helix is the complete engine for an athlete. Every system of your body measured from your Apple Watch and iPhone, connected, and turned into your next move.

Helix is the complete engine for an athlete. Every system of your body — sleep, strain, recovery, strength and blood — measured from your Apple Watch and iPhone, connected, and turned into your next move.

YOUR MORNING NUMBER Wake to a recovery score built from your HRV, resting heart rate, respiratory rate and wrist temperature, compared against your own baseline — not a population average. Confidence grows as Helix learns your body.

TRAIN WITH INTENT Every workout earns a strain score from heart-rate load, so hard days count and easy days stay easy. Load balance tracks your acute vs chronic training load and shows when you are in the sweet spot — and when you are piling on risk.

SLEEP LIKE IT MATTERS Sleep performance blends duration against your need, efficiency, deep and REM sleep and latency. Helix tracks sleep debt across the week and your sleep regularity — a measure that research links to long-term health more strongly than duration alone. No watch on? Helix can estimate your night from your iPhone.

GO DEEPER • VO2max lab with a guided Cooper test and interval work • Strength lab with per-muscle recovery and a full muscle map • Physique and gym equipment scans powered by AI • Bloodwork analysis: upload lab results and see them in context • Nutrition logging with barcode and meal-photo scanning • Menstrual cycle awareness for training guidance • An energy plan that schedules your day around your body • An AI coach that reads your numbers and tells you what they mean

ON YOUR WRIST AND HOME SCREEN A standalone Apple Watch app with live readiness, Smart Stack complications, home-screen widgets and Live Activities. Earn badges and climb Game Center leaderboards as your fitness improves.

PRIVATE BY DESIGN Your health data is processed on your device. No account, no ads, no trackers. The AI coach sees only anonymized numbers — never your identity or raw health samples.

HELIX PRO Some features require Helix Pro, an auto-renewing monthly or annual subscription. Payment is charged to your Apple ID; subscriptions renew unless cancelled at least 24 hours before the period ends, and can be managed in your App Store settings.

Terms of Use: https://www.projecthelix.app/terms Privacy Policy: https://www.projecthelix.app/privacy

Helix is not a medical device and does not provide medical advice.