“Should I train today?”
The whole point. One number, the reasons behind it, and a call you can act on before you have finished your coffee.
One coach for everything you already log.
Samsung Health knows how you slept. Garmin knows your training. Hevy knows your lifts, Strava knows your runs, your watch knows your heart rate. None of them sees the whole picture. PeakU reads all of it through Health Connect on Android, and turns it into one answer each morning: a Peak Score, the reason it is what it is, and what to do about it today.
Founder's Pass: free for the whole beta and the first year after it. 500 places, closing 15 November 2026.
AndroidWear OS · standaloneDesktop & browser
This morning · example
85Peak ScorePush
- Sleep recovered well
- HRV above your baseline
- Training load moderate
Today's call: 6 × 800 m at 5K effort.
The problem
Your data is already everywhere.
Every app below holds one true piece of you. None of them holds the rest, so none of them can answer the question you actually have in the morning.
- Samsung Healthknows how you slept
- Garminknows your training
- Ouraknows your recovery
- Whoopknows your strain
- Polarknows your heart rate
- Stravaknows your runs
- Hevyknows your lifts
PeakUreads all of it
“What should I do today?”
What PeakU is
A coach that reads everything you already track.
A coach you talk to. It reads your wearables, your lifts and your runs, then answers in plain language: what today's training load means, whether to push or back off, what last night's sleep score means for today.
This morning · example
The call: Push
PushModerateEasyRest
One number each morning, always with the reasons and the call for the day.
1
number a morning
The Peak Score does not replace your watch's readiness score — it reads that one too, alongside sleep, HRV and training load from everywhere else, and folds the lot into one number with a why and a what-to-do.
6+
sources, one coach
Samsung Health, Garmin, Whoop, Oura and Polar through Health Connect; Hevy and Strava directly. Works with one source connected and gets better with each one you add.
0
new logging habits
You keep logging where you already log. PeakU is where you go to understand it and find out what to do next.
One score, your whole picture
Why it is not another readiness score.
Your watch already gives you a number. So does the ring, and the strap. PeakU does not compete with them — it reads them, adds what they cannot see, and shows its working.
Tuesday · example
72Peak ScoreModerate
What moved it, in points
- Sleep+8
- HRV vs baseline−6
- Training load−4
- Resting HR+2
Run 5 km easy. Skip the intervals today.
Every number on the left is one you can check.
A single proprietary score you cannot interrogate is just a mood ring. PeakU shows which signal pushed the number up, which pulled it down, and by how much — so when it tells you to skip the intervals, you can see why, and disagree with it if you know something it does not.
It also means the score survives you changing watches. The inputs move; the method does not.
Features
What ships in the beta
Everything below is either built or being built. Waitlist members get each piece as it ships.
- 01
Peak Score
Recovery, last night's sleep, HRV against your 30-day baseline and acute-to-chronic load, scored into one number each morning with the call for the day: push, moderate, easy or rest.
- 02
A coach that cites its sources
Ask whether to lift today, why recovery is low, or whether the long run can move to Thursday. Every answer says which of your numbers it is based on.
- 03
Recovery, HRV and sleep
HRV status, sleep score, recovery time and load ratio on one screen, with the drivers ranked so you can see what moved the number.
- 04
Adaptive running plans
5K, 10K and half-marathon blocks built toward your date, audited for ramp rate and hard-day spacing, and reflowed when readiness drops or a session slips.
- 05
Lifting programs, in Hevy
Progressive-overload routines with a routine builder, pushed to Hevy so you train where you already train. PR detection and session scores when you finish.
- 06
A watch that works alone
The Wear OS app talks to the coach directly: full lifting logger on the wrist, live runs with heart-rate zones, morning brief, fasting timer. Logs offline, replays on reconnect.
- 07
PeakU Age
A fitness age estimated from aerobic fitness, resting heart rate and sleep, with a confidence range and the one lever most likely to make it younger.
What you ask it
The questions it is built to answer.
“Why is my recovery down?”
Ranked drivers, not a shrug: what moved HRV, what last night's sleep cost you, what the last four days of load are still charging you for.
“Can I run today after leg day?”
It knows what leg day was, because Hevy told it, and what it did to you, because your watch did.
“Can I move my long run to Sunday?”
Yes, and here is what the rest of the week becomes. The plan reflows instead of quietly falling apart.
The trust layer
The numbers are calculated. The AI only explains them.
Computed, never generated
Your Peak Score, training load, recovery and plan progression are ordinary code with unit tests behind them. A language model is never asked what your HRV means for your load ratio, because it would answer, and it would sometimes be wrong.
The model does the talking
What the model is for is the part it is good at: turning four numbers and a ratio into a sentence you can act on, and answering when you ask it why.
It errs downward
Every reply passes a red-flag filter and every plan is audited before you see it. When your data is thin or stale, the plan biases intensity down, never up.
Screens
A look inside PeakU
Scroll sideways for the phone and the watch. The browser client is below.
How it compares
The coach that reads the others.
Each of these is excellent at its own slice. PeakU is the layer that reads them and decides what today is for.
| Feature | PeakU | Hevy | WHOOP | Garmin Connect | Google Health |
|---|---|---|---|---|---|
| Reads data from other brands' wearables | Yes | No | No | No | Partial |
| Lifting log with sets, reps and PRs | Via Hevy + watch | Yes | Auto-detect | Yes | Basic |
| Recovery / readiness score | Yes | No | Yes | Yes | Yes |
| Training changes when readiness drops | Yes | No | Partial | Yes | Yes |
| AI coach that cites your numbers | Yes | No | Yes | Paid tier | Paid tier |
| Standalone Wear OS app | Yes | Yes | No | Own watches | Yes |
| Fasting timer | Yes | No | No | No | No |
| iPhone app | No | Yes | Yes | Yes | Yes |
Checked against each product’s public pages and store listings in October 2026. Products change; if a cell is out of date, tell us at hello@upeak.io and we will fix it.
FAQ
PeakU, answered
What data does PeakU read?
Sleep, HRV, resting heart rate, steps, weight, workouts, VO₂max, SpO₂ and respiratory rate through Health Connect on Android, which is where Samsung Health, Garmin, Whoop, Oura and Polar already write. Strength sessions come from Hevy directly and runs from Strava. PeakU also writes its own workouts back so the other apps see them.
Do I need a specific watch?
No. PeakU is hardware-agnostic: it reads whatever your current watch already syncs to Health Connect. The optional Wear OS app adds a standalone wrist client with a lifting logger and live runs, but it is not required.
Does it replace Hevy or Strava?
No, it unifies them. You keep logging where you log; PeakU reads all of it, decides what today should look like, and pushes lifting routines back to Hevy so you train in the app you already use.
How is the Peak Score different from Garmin Body Battery, Whoop Recovery or Oura Readiness?
It is not a rival to them, it is a layer above them. Those scores each see one device's view of you; the Peak Score reads whichever of them you already have, adds the lifting and running your watch never sees, and scores the combination. It also shows its working — which signal pushed the number up, which pulled it down, and by how much — so you can argue with it.
Is the coach a language model? Is that safe for training advice?
The numbers are deterministic code: Peak Score, load, recovery and plan progression are computed and unit-tested, never generated. The language model only explains them. Every reply passes a red-flag filter, plans are audited before they are shown, and when data is thin or stale the plan biases intensity down.
Is there an iOS version?
Not yet. PeakU runs on Android with Health Connect, on Wear OS watches, and on the desktop in a browser. There is no iPhone or Apple Watch app today.
What is the Founder's Pass?
It is how the first 500 people on the waitlist join. A founder gets every app they ticked free for the whole beta and for the first year after each one launches, founder pricing after that for as long as they stay, and an invite ahead of the general waitlist. It costs nothing and needs no card — only that you join before the round closes on 15 November 2026.
What happens when the founding round closes?
The waitlist stays open and stays free to join, but that is all it is: no free year, no locked-in price, and invites go out behind the founders. The round closes on 15 November 2026, or earlier if all 500 places are taken.
The rest of the suite
The other apps
PeakVitalBaseline · Three tests. One number. Your real age.
PeakBeatTraining · Your effort writes the setlist.
PeakClothesWardrobe · One outfit a morning. No scrolling.
PeakLookAttention · Drafts the reply. Keeps the follow-up going.
PeakWatchAgents · Your coding agent, on your wrist.
PeakVoucherWallet · A wallet for the vouchers buried in your messages.
PeakFinanceHousehold · Save more, and see exactly where the household stands.From the blog
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Private by default
Deterministic and secure
WCAG 2.1 AA
Every UPeak app ships with the same three commitments.
Founding round · closes 15 November 2026
Get in while
it is still free.
The suite opens one app at a time, and the first 500 people through the door open it as founders. Tell us what you are training for and that is where we will start you.
Founder's Pass
First 500 only
Free for the whole beta — and the first year after launch.
Join before 15 November 2026 and you join as a founder. After it closes the waitlist stays open, but a waitlist is all it is: no free year, no locked price, and invites go out behind the founders.
--days
--hrs
--min
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- Every app you tick, free for the whole beta and for the first year after it launches.
- Founder pricing after that year, locked for as long as you stay.
- First in the queue: founders are invited ahead of the general waitlist, in join order.
- A direct line to the people building it — your reply goes to us, not to a helpdesk.
Your founder place is held.
We got it. Your Founder's Pass is logged against your email. When your slot opens you'll get one email with the build for the app you asked for first.