Heart-rate variability
A window into how taxed your system was overnight. Noisy night-to-night, so cowe reads the trend against your own baseline — never a single morning.
cowe is a pay-once recovery app for Apple Watch. It turns the overnight HRV, resting heart rate and sleep your watch already records into one calm morning readiness score — computed entirely on your device. No separate band, no account, no subscription.
Lock the $15 founding price.
Recovery you own, on the Apple Watch you already have — pay once, no subscription. Join free now and lock $15 before it rises to $24.99 at launch.
One calm morning recovery score — computed on your own device from the signals your Apple Watch already records.
Yes. The difference is structural, not a discount: cowe is a one-time app that runs on hardware you already own and keeps your data on your device. Here is the honest, factual comparison.
| cowe | Subscription recovery wearables (e.g. WHOOP) | |
|---|---|---|
| Price | Pay once — $24.99 ($15 founding on the waitlist) | Recurring monthly or annual subscription |
| Hardware | The Apple Watch you already own | A separate proprietary band you buy and wear |
| Your data | 100% on-device — never leaves your iPhone | Synced to the company's cloud |
| Account | None — open the app and go | Account required |
cowe is an independent app and is not affiliated with, endorsed by, or sponsored by WHOOP, Inc. "WHOOP" is a trademark of its respective owner, used here only for identification and comparison.
No new sensor. cowe reads what your Apple Watch already records each night and reads it against your own baseline — not a stranger's average.
A window into how taxed your system was overnight. Noisy night-to-night, so cowe reads the trend against your own baseline — never a single morning.
Steadier than HRV. Read alongside it as part of the same readiness picture, against your personal trend.
Duration and consistency are the foundation. cowe treats the trend as directional — and tells you when it isn't sure yet.
New to these signals? See what your Apple Watch already tracks — a free explainer, no signup.
No. cowe runs on the Apple Watch and iPhone you already own — nothing extra to buy or wear.
A one-time $24.99 — no subscription, ever. Waitlist members lock the founding price of $15 before launch.
Nowhere. Every score is computed on your devices. No cloud, no account, no analytics, no tracking.
No. cowe is a wellness and fitness tool — a readiness signal against your own baseline. It does not diagnose, treat or prevent any condition.
One calm morning readiness number, computed on-device. No account, no cloud, no subscription. Join the waitlist and lock the founding price.