PeakU · BodyComing soon · private beta

One coach for everything you already log.

PeakU sits on top of Samsung Health, Garmin, Whoop, Oura, Hevy and Strava, reads them through Health Connect, and turns them into one adaptive coach: a daily Peak Score, plans that bend around how you slept, and answers grounded in your own numbers.

Get PeakU first What it does

Android phoneWear OS · standaloneBrowser

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 the sleep number is actually telling you.

number a morning

The Peak Score folds recovery, sleep, HRV and training load into one readiness number, always paired with a why and a what-to-do.

sources, one coach

Samsung Health, Garmin, Whoop, Oura, Polar and Strava through Health Connect; Hevy directly. Useful with one connected, better with each.

new logging habits

You keep logging where you already log. PeakU is the one place you go to understand it and be told what to do next.

Features

What ships in the beta

The high-level map. Every item below is built or in build; the waitlist gets each one as it lands.

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.

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.

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.

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.

Recovery, HRV and sleep

HRV status, sleep score, recovery time and load ratio on one screen, with the drivers ranked so you know what actually moved the number.

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.

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.

Deterministic where it matters

Scores, load and plan progression are computed, never generated. The language model explains them and every reply passes a safety gate; thin or stale data biases intensity down, never up.

Screens

A look inside PeakU

Scroll sideways. These are the screens as they exist today.

PeakU screen: Today — Peak Score, readiness bands and the day's call, on the phone. — **Today**Peak Score, readiness bands and the day's call, on the phone.

PeakU screen: Coach — Plain-language answers grounded in your HRV, load and sleep. — **Coach**Plain-language answers grounded in your HRV, load and sleep.

PeakU screen: Recovery — Readiness with its signals and what to do about them. — **Recovery**Readiness with its signals and what to do about them.

PeakU screen: Running plan — A half-marathon block, safety-audited and week by week. — **Running plan**A half-marathon block, safety-audited and week by week.

PeakU screen: Routines — Push / pull / legs programs that push to Hevy. — **Routines**Push / pull / legs programs that push to Hevy.

PeakU screen: Session summary — Volume, PRs and a session score when you finish. — **Session summary**Volume, PRs and a session score when you finish.

PeakU screen: Weekly review — Wins, slips and what the coach changes next week. — **Weekly review**Wins, slips and what the coach changes next week.

PeakU screen: PeakU Age — How your body is ageing, and what moves it. — **PeakU Age**How your body is ageing, and what moves it.

PeakU watch screen: Watch · readiness — The score and the call, glanceable. — **Watch · readiness**The score and the call, glanceable.

PeakU watch screen: Watch · lifting logger — Sets, reps and rest on the wrist. — **Watch · lifting logger**Sets, reps and rest on the wrist.

PeakU watch screen: Watch · live run — Pace, heart rate and time with no phone. — **Watch · live run**Pace, heart rate and time with no phone.

PeakU watch screen: Watch · zones — Live heart-rate zone with a threshold cue. — **Watch · zones**Live heart-rate zone with a threshold cue.

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.

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. Health Connect is an Android platform, so PeakU launches Android-first with a Wear OS companion and a browser client. iOS is on the roadmap after the beta.

The rest of the suite