The platform

Bio-observability: every signal, one engine, honest interpretation.

Vitality Tracker ingests, unifies, and interprets the signals of a person's physiology and behaviour — then helps them act on what it finds. Web-first for depth, with a mobile companion for daily capture. Best understood as two layers: the domains it observes, and the modules that plan, coach, and forecast across them.

Seven tracking domains

01

Body Composition

Weight, body fat, and BIA readings with a DEXA-anchored correction that fixes consumer scales' lean-user bias.

02

Nutrition & Energy Balance

Proactive meal planning — ingredients → recipes → weekly plans → shopping lists — plus an adaptive energy engine that infers true expenditure.

03

Activities & Lifestyle

Training load, steps, workouts, cold and heat exposure — and a Physical Condition Journal of functional benchmarks over time.

04

Metabolic Health

Continuous glucose and ketone monitoring across multiple sensor brands, fasting markers, and automatic fasting-window detection.

05

Cardio-Respiratory Health

VO₂max, resting and overnight heart rate, HRV, blood pressure, SpO₂, respiratory rate, and vascular-age estimates.

06

Stress, Rest & Recovery

Sleep depth and regularity, validated psychometrics, a same-day Capacity score, and the headline 0–100 Vitality Score.

07

Circadian HealthUpcoming

Circadian phase and rhythm-quality modelling from continuous heart-rate data — with light-timing practice tools that turn observation into intervention.

The functional modules

Capabilities that operate across every domain.

Eir — the AI health coach

Explains every headline number in plain language, surfaces trends and correlations, and screens nutrition claims — including its own advice — against a peer-reviewed misinformation framework. It describes and contextualises; it never diagnoses.

Forecasting & Playbooks

Probabilistic forecasts with honest confidence bands feed goal Playbooks — declarative targets with safety floors — in a loop that corrects the plan against what the user actually did.

Supplement management

Structured regimens with adherence tracked against biomarker trends — and a reorder engine that prompts before the bottle runs out.

Labs & genomics

Lab-result tracking with computed longevity indices, and DNA reports humanised into readable summaries.

N-of-1 experiments

A guided hypothesis → baseline → intervention → analysis workflow with a statistical readout, for personal experiments done properly.

Collaborative sharing

Role-specific dashboards for clinicians, coaches, facilities, and family — time-limited, read-only, with pre-visit PDF reports.

Body composition trends with DEXA-corrected body fat, web platformAdaptive energy balance engine, web platform
The web platform: DEXA-corrected body-composition trends and the adaptive energy-balance engine — the depth a big screen is for.

Platform principles

Hardware-agnostic

Any device via Apple Health or Health Connect — or manual entry. Features activate by data quality, gracefully.

Full transparency

The scientific basis behind every computation is surfaced in-product — the why, not just the what.

Data sovereignty

Users own and can export their complete dataset. No lock-in as a condition of keeping your own history.

Honest uncertainty

Confidence bands over false precision — a low-confidence feature hides rather than guesses.

Where we stand: the web platform is deep in its MVP build, the syncing mobile beta lands late July 2026, and go-to-market follows around the end of Q3. Vitality Tracker describes and interprets — it does not diagnose, and it is not a medical device.

The full platform story — modules, staging, roadmap — is in the dossier.

Editions for investors, partners, and vendors. Reviewed personally, sent by email.

Request the Dossier →