Longevity · Readiness · The long game
Arc brings recovery, training and lab context into one private view, then turns the checked numbers into a daily readiness cue, a monthly review and a plan that can flex when life gets in the way.
Static product preview. Connector coverage is launch-scoped, not live on this site.
Recovery
+6 this month — trending up
↑ tap a signal for its trend · illustrative figures, not a personal result
01 The difference
Snapshot vs. trajectory
A daily score is a snapshot. It can't show you the trend — better than last spring, or on track for the next twenty years. Arc keeps the whole arc in view — and adjusts the path under your feet as it changes.
Today-apps
Arc
02The system
Every day feeds the month. Every month bends the year. Keep scrolling — the line is your trajectory, and the loops are what keep it rising.
Arc won't tell you what to do. Each morning it shows whether your overnight HRV sits below your own recent baseline — a possible sign of stress, illness or hard load — so an easier day might make sense. You decide. Estimated from your sleep and HRV over the last few nights.
On the 1st, what actually moved and what didn't. Trends over noise, with the single change to make next.
Set a 12-month healthspan goal. Arc reverse-engineers it into seasons, blocks, and the session in front of you today.
The long view
Year 0
Horizon
30 yrs
03 App fold
Static preview · synthetic data
These screens mirror real Arc surfaces from the internal app: Today, Briefings, Sources and Workouts. All figures are synthetic and anonymised; no backend, user account or health record is exposed here.
Latest readiness · demo
Above baseline.
Moderate load suggested.
HRV (demo)
≈64 ms
SLEEP
7:42
Watch
Morning brief
06:41
claims checked
Recovery is steady. Keep the run conversational and move the heavy lift if legs still feel flat.
Surface mirrors internal briefings · demo prose
Source health
Apple Health bridge
nightly recovery stream
Garmin activities
runs + rides
Strength log
sets + volume
Lab upload
reference-range charts
Latest workouts
04 When life gets in the way
Illustrative
A bad night, a work trip, a sick kid. Most plans guilt-trip you or quietly fall apart. Arc reads your readiness every morning and rebalances the week — easing volume when you're depleted, reclaiming it when you bounce back. The goal stays; the path flexes. The week below is an illustration of how that works, not a personal result.
When two days come in low, this is how Arc responds — it would move that week's strength block to Saturday and protect the zone-2 target, keeping the plan on track. An illustration of the mechanic, not your data.
05 What's inside
4 fields
An overnight readiness estimate from recovery, sleep and HRV, read against your own baseline — a suggestion you decide on, not a score you guess at.
Est. readiness (demo)
Above your baseline.
Recomputed 06:40 daily
Range-of-motion tracked like a vital sign — the thing that decides how you move at 70.
12 joints · tracked in °
ApoB, glucose, hs-CRP and the rest leave the PDF as trends, plotted with standard reference ranges for context.
30+ markers · plotted against standard reference ranges
Arc keeps the block you skipped in March in view and routes around it. Guidance is written against your actual history.
Context since day one
Bloodwork markers (ApoB, glucose, hs-CRP and the rest) are shown as trends against standard reference ranges for educational information only — not a diagnosis. Arc is not a medical device; discuss results with your doctor.
06 By the numbers
How Arc is built
source categories represented in the static product preview
planning horizon by design, not a 7-day window
of figures designed to be checked against your own data first
reading to wake up to each morning
Arc is built on one rule: every number it shows you should be re-checked against your own data before you see it. The principle we're building to — if a figure can't be backed by a query, it doesn't ship.
07 The science, plainly
No black box
No mysticism, no proprietary black box. The terms Arc is built on, stated so you — and your doctor — can check our work.
08 In real life
Illustrative
No transformation montages. How Arc reads a real week — the daily readiness, the days life got in the way, and the line that kept bending up.
Demo
Est. readiness ≈ 82
This morning
Above baseline
consider a moderate day
HRV · 7-day
09 Early access
Pre-launch
Arc is in early access. Planned launch pricing is annual: Core at €99/year and Labs at €179/year, each with a 7-day trial. The waitlist costs nothing and locks nothing in.
Planned Core membership · €99/year.
Planned Labs membership · €179/year.
Memberships are not sold on this site yet. Connector scope, billing and product terms will be published before paid early access opens.
10 Questions
Before you start
Most apps optimise today — a strain or recovery score you read and forget. Arc connects that daily readiness to a monthly review and a multi-year plan, and re-plans automatically when life gets in the way. The day is an input; the trajectory is the point.
Recovery, sleep, HRV, resting heart rate, training load, running mechanics, strength progression and optional lab markers — shown as trends instead of disconnected daily numbers. Every figure is designed to be checked against your own data before it appears.
Arc reads your readiness every morning and rebalances the week — easing volume on depleted days and reclaiming it later. A missed week bends the plan; it doesn't break it.
No new device is planned for launch. Arc is being built around common wearable, training-log and lab-export data; the exact connector list will be published with the early-access build.
Arc is in early access. Bring the wearables you already wear — and join the first members shaping it.
No spam, no lock-in. We'll only use your email to tell you when Arc opens.