Know your body. Train with confidence.
One number tells you if today is a push day or a recovery day. Research-backed insights explain why your readiness changed and what to do about it — grounded in the same science your coach trusts.
Your day
Built into your routine
Matter AI fits naturally into an athlete's day — from waking up to post-workout review.
Morning Check-In
Open the app, see your readiness score, and know if today is a push day or recovery day. Takes 10 seconds.
During Training
Your coach sees your readiness and adjusts your workout in real-time. No more one-size-fits-all programming.
Evening Review
Log your workout, check your strain, and see how today’s effort affects tomorrow’s readiness.
The Metrics That Matter
Six data points that paint the full picture of your readiness and recovery.
Readiness Score
0–100
A single number that tells you how prepared your body is to perform today. Calculated from sleep, HRV, resting heart rate, and strain.
HRV
Heart Rate Variability
The gold standard for recovery measurement. Higher HRV means your nervous system is recovered and ready for training stress.
Sleep Hours
Total Duration
How long you slept. Simple but critical — even small deficits compound over a training week and tank your readiness.
Sleep Score
Quality Rating
Sleep quality beyond just hours. Factors in restfulness, wake events, and consistency to give you a true picture of recovery.
Resting Heart Rate
Baseline BPM
Your body’s baseline. Elevated resting HR is one of the earliest signals of fatigue, illness, or overtraining.
Strain
Training Load
How much stress your body absorbed from training and daily activity. Balancing strain with recovery is the key to progression.
Your wearable data, finally useful
Apple Watch, WHOOP, and Polar sync automatically. Manual check-ins work too. Matter turns those numbers into decisions you can act on.
Readiness Scoring
Wake up and know exactly where you stand. Your readiness score synthesizes all your health metrics into one actionable number.
Personalized Insights
Evidence-based guidance explains why your readiness changed and what to do about it — grounded in peer-reviewed research.
Trend Analysis
Track your readiness, sleep, and HRV over time. Spot patterns and understand how training, sleep, and stress affect your body.
Training Log
Log workouts and see how training load correlates with your recovery. Build the feedback loop between effort and readiness.
Your data, your control
You decide what your coach can see. Granular privacy toggles let you share readiness without exposing every metric.
Granular privacy controls
Toggle exactly which metrics your coach can access — HRV, sleep, resting heart rate, and more. Your health data is never shared across teams or sold.
Connected wearables
Apple Watch syncs via HealthKit. WHOOP and Polar connect directly. Garmin support is coming soon. No wearable? Manual check-ins work too.
Free for athletes
Athletes on a Matter AI team get full access at no cost — readiness scoring, personalized insights, trend analysis, and workout tracking included.
See the app in action
Daily readiness scores, personalized coaching insights, workout tracking, and recovery trends \u2014 all in one app.
Your body has answers. Start listening.
Join the waitlist for the iOS app. Readiness scoring, personalized insights, and adaptive training — free for athletes on a Matter AI team.
No credit card required