Privacy

The short version is the whole version.

Effective 6 October 2026

Yawp collects nothing. There is no account, no analytics, no advertising, and no server belonging to us for your data to go to.

Most privacy policies are long because the app sends data somewhere and the policy has to account for it. Yawp doesn’t send data anywhere, so this page is mostly a list of things that do not happen. What follows is the detail behind that claim.

What Yawp stores, and where

Yawp reads a Bluetooth heart-rate strap and computes everything on your iPhone. Readings are written to a database inside the app’s own storage on the device:

• Heart rate and the beat-to-beat (RR) intervals the strap reports
• Metrics computed from those: HRV, resting heart rate, readiness, load, stress, sleep and its estimated stages
• Strap battery level and the identifier of the strap you paired, so the app can reconnect to the right one
• Your height, weight, age and sex, only if you enter them or import them under ••• → Your profile, and only so calories and VO₂ max can be estimated

This stays on your phone. We never receive it, and we have no way to.

Apple Health

Both directions are optional, asked for separately, and the app works without either.

Direction	What
Yawp writes	Heart rate, resting heart rate, heart-rate variability and sleep, so your other apps can use what Yawp measured.
Yawp reads	Your step count, and nothing else. It is shown alongside your heart-rate metrics and used in the calorie estimate.

Health data is never used for advertising, never sold, never shared with anyone, and never leaves your device by way of this app. You can revoke either permission at any time in Settings ▸ Health ▸ Data Access & Devices ▸ YAWP.

iCloud backup, if you turn it on

Yawp can back up daily summaries — one small record per day — to your own private iCloud, so a new phone starts with your history instead of an empty baseline.

• It is off until you switch it on — tap ••• at the top right of the Today screen, then iCloud backup.
• It goes to your iCloud private database. Not to us. We cannot read it, and neither can Apple.
• Raw samples stay on the phone; only the daily numbers sync.
• Leave it off and the app makes no network connections at all.

What Yawp does not do

• No account, no sign-up, no email address, no password.
• No analytics, crash reporting, or usage tracking of any kind.
• No advertising, and no advertising identifiers.
• No third-party SDKs that phone home.
• No selling or sharing of data, because there is nothing to sell and no one to share it with.
• No tracking you across apps or websites.

Deleting your data

Delete the app. iOS removes its storage with it, and your readings are gone. There is no copy on a server, because there is no server.

If you turned on iCloud backup, remove it separately in Settings ▸ [your name] ▸ iCloud ▸ Manage Account Storage ▸ Yawp. Anything you wrote to Apple Health belongs to Health, not to Yawp, and is deleted there.

Children

Yawp is not directed at children under 13 and collects no personal information from anyone, of any age.

Changes

If this policy ever changes, the new version appears here with a new effective date. A change that would mean collecting anything would be announced in the app before it took effect — and would be a different product than the one described here.

Contact

Questions about privacy: support@yawp.rest. See also the support page.