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Entirely in your browser on this device. There is no account and no server copy. See the Privacy Policy.
Go to Settings → Data and use Export to download a JSON backup. On a new browser or device, use Import on the same screen to restore it. Keep your backup file somewhere safe — it is the only copy.
Because data is device-local, clearing browser storage removes it permanently unless you have an exported backup. Re-import your backup to restore everything.
No. Longevity is an educational tool, not a medical device. Always consult a qualified healthcare professional for medical decisions. See our Terms.
It is a simplified estimate derived from the metrics you log (such as resting heart rate, sleep, activity, and biomarkers). It is meant for awareness and trend-tracking, not diagnosis.
Operated by Сейв Май Тайм ООД (Save My Time Ltd.), ЕИК 208642635 · info@savemytime.dev.