About Longevity

Longevity is a private, evidence-based companion for people who want to measure and improve their healthspan — the number of years lived in good health. It brings the habits that the longevity literature consistently points to — sleep, Zone 2 cardio, strength, protein, key biomarkers, fasting, recovery, and heat/cold exposure — into one calm, focused dashboard.

Built to be private

There are no accounts and no cloud database. Everything you log lives in your browser on your device. That means your most personal health data is never uploaded, sold, or profiled — it is simply yours. You can export a backup at any time.

What it includes

• Biological-age and longevity-score estimates from the data you log.
• Tracking for sleep, activity, recovery (HRV/RHR), nutrition, fasting, supplements, and thermal sessions.
• 26 biomarkers with optimal ranges and trends.
• Daily protocols, yoga and breathwork, and a curated research digest.
• Personalized insights computed from your own trends.

Honest about limits

The estimates and ranges are simplified and educational. Longevity is not a medical device and does not provide medical advice — see our Terms. Use it to build awareness and good habits, and work with a qualified professional for clinical decisions.

Who makes it

Longevity is built and operated by Сейв Май Тайм ООД (Save My Time Ltd.). We love hearing from users — reach us via the support page.