Transform Apple Watch data into personalized daily guidance. Backed by peer-reviewed science, designed for people serious about longevity.
Every metric is calculated from YOUR baseline, not population averages.
Track how fast you're aging based on sleep, HRV, activity, and more. See your pace of aging versus calendar time.
Deep sleep, REM cycles, sleep debt, and quality scores. Understand why some mornings feel better than others.
Your real-time battery level based on sleep, strain, and recovery. Know when to push and when to rest.
HRV-based stress tracking with alerts and guided breathing exercises. Catch stress before it catches you.
Early warning system using temperature, HRV, and heart rate patterns. Get alerts when something's off.
Personalized strain targets and recovery scores. Train smarter, not just harder.
Every algorithm in Prysm is based on peer-reviewed research. We don't make claims we can't back up.
Trusted by athletes, biohackers, and anyone serious about longevity.
Download FreeQuestions about your metrics or running into an issue? We're here to help.
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