LongeviTwin calculates your biological age from bloodwork, wearables, and lifestyle biomarkers — then gives you a private AI health twin to act on the insights. All analysis runs on your device.
Every step of the analysis pipeline runs on your hardware. No data leaves your device at any stage.
The biological age engine and the AI health twin work together — both running entirely on your device.
Upload a blood panel or connect a wearable and receive a single, interpretable biological age — computed from cardiovascular, metabolic, sleep, activity, and inflammatory biomarkers using longevity-optimized reference ranges, not clinical normals.
Implements PhenoAge (Levine et al., 2018) and composite scoring across six biological domains, with each score tied to a specific mechanistic pathway.
Your AI twin knows your complete biomarker history and communicates in plain language. Ask about supplements, lab interpretation, longevity protocols, or your trajectory toward a target biological age — with no conversation data ever transmitted.
The local LLM has full context of your profile across sessions. Your health data and AI conversations exist only on your hardware.
Take a photo, upload a PDF, or paste your values directly. LongeviTwin accepts standard lab panels from any provider. Our AI extracts and normalizes your biomarkers automatically — no proprietary test or special lab required.
Within seconds, your biological age, domain health scores, and biomarker analysis are calculated entirely on-device. Results display in a clear visual dashboard — every number explained in plain language with a mechanistic rationale.
Review ranked intervention recommendations prioritized by impact on your specific biology. Ask your AI twin anything. Track your biological age trajectory as you update results over time.
The AI model runs on your hardware. There is no cloud endpoint to send health data to — the platform structurally cannot access your information.
We map your markers against longevity-optimized ranges — not just clinical normals. "In range" and "optimal for a long healthspan" are different targets.
Every insight comes with a projected biological-age impact. You see the exact intervention, the expected magnitude of improvement, and the evidence basis behind it.
We implement, validate, and extend methods tested in longitudinal population studies. We do not create proprietary scoring systems without a scientific basis.
A biological age estimator derived from nine standard blood biomarkers, validated across the NHANES cohort. Predictive of all-cause mortality independent of chronological age. PhenoAge is our primary scoring algorithm.
Our domain scoring maps to the established biological hallmarks of aging — including mitochondrial dysfunction, cellular senescence, and chronic inflammation — giving each score a mechanistic foundation, not just a statistical one.
Intervention recommendations are graded by evidence strength. We distinguish between interventions supported by randomized controlled trial data and those supported by observational evidence only — and communicate this transparently.
Most health apps promise privacy in a terms of service. LongeviTwin delivers it through a fundamentally different architecture — the model runs on your hardware, and there is no server to transmit data to.
No account required for core features. Lab uploads are processed and discarded locally. AI conversations exist only within your session. Your biomarker history never leaves your device.
See how your AI health twin processes data, estimates biological age, and builds a personalized longevity protocol — entirely on-device.
LongeviTwin is now accepting early access users. Join the waitlist and be among the first to use the most private longevity platform ever built.
Track your biological age, upload bloodwork, and chat with your AI twin — all on-device. No subscription required for early access.
Join the waitlist →Integrate LongeviTwin’s on-device biomarker scoring into longevity clinics and research cohorts. API access available for qualified institutional partners.
Discuss integration →A consumer health platform and biomarker data flywheel — with structural privacy that makes enterprise health partnerships possible without compromising individual data.
Get in touch →LongeviTwin is available in early access. Join the waitlist to be among the first to experience the platform.