The instrument

Read your signal.

Coming to the App Store · one-time £39.99

TRACE
Today
Mon 13 Jul
Lag indicators
VO₂ max48  
HRV62 ms  
Resting HR58  
TRACE
This week
Week 24
Lead indicators
Zone 2142 min  
Protein5/7 days  
Sleep window6/7  

What it does

Your signal, read for you.

14-day baseline

Learns your normal before it says a word.

Baseline-relative thresholds

Red, yellow, and green lines set to you — not an average.

Review engine

Weekly, monthly, and quarterly readouts on a real cadence.

Guided 12-week mode

Runs the Blueprint's plan, one keystone at a time.

Physician brief

Export a clean summary for your next appointment.

Apple Health

Opt-in and private. Reads the signals you choose — and can write results back if you want.

The economics

£39.99

An instrument you
own — not a
subscription you rent.

One-time

Pay once. No renewal, no recurring toll on something you already bought.

No account

No sign-up, no login, no profile to manage. Open it and it runs.

Private by design

Local-first. Your data never leaves your device — nothing to harvest.

The screens

Quiet by design.

Join the waitlist

No streaks, no confetti. TRACE stays quiet until it matters — then it flags what needs your attention and drops your reviews and actions straight into your calendar.

TRACE
Read your signal.
TRACE
Weekly review
Week 6 · on track
Suggested action
Add one Zone 2 session; audit sleep and protein.
TRACE
Physician brief
Prepared 13 Jul 2026
Resting HR · 58 bpm
HRV · 62 ms
ApoB · 0.9 g/L
TRACE Page 1 of 2

Coming soon

The instrument needs the method.

TRACE runs the system the Blueprint lays out. Get both together for £54.99 — or start the book today and add TRACE at launch.

Get the bundle Read the book

You're on the list — we'll email you the moment TRACE ships.

One-time £39.99 at launch. No subscription, ever.