Privacy Policy

Last Updated: August 10, 2026

We take privacy seriously. Data is computed and securely stored on your device, ensuring you're always in control.

Jumpable is made by Callosum AI Inc. Here is the whole thing in a sentence: the app has no accounts and never asks who you are, your jump data lives on your own devices, and the only thing we collect is anonymous motion data to make the measurements better.

What we don't collect

No name, email, phone number, or location. No account, no login, no sign-up. We don't track you across other apps, build a profile of you, or sell data to anyone. Nothing here identifies you, because we never ask for it.

Your jumps stay on your devices

Every jump you record, along with your history and stats, is calculated and stored on your Apple Watch and iPhone. We don't keep a copy and we can't see it. Delete the app and it's all gone. There's no account to close.

What we do collect

To keep improving how Jumpable measures jumps, the app sends anonymized recordings of jumps to Google's cloud services, which host our data. Recordings hold raw sensor signals and the numbers we calculate from them, like height, force, and timing. It carries no name, email, location, or health record, and we have no way to link it to you. We only use it to refine the algorithms, never for ads or profiling. We keep these recordings only as long as they're useful for improving Jumpable's measurements.

Apple's sensors

Jumpable reads motion from your Apple Watch through Apple's Core Motion framework, which is governed by the permissions you grant on your device. You can turn that access off anytime in Settings.

Kids

Jumpable isn't meant for children under 13, and we don't knowingly collect anything from them.

Updates and contact

We follow the privacy laws that apply to us. If this policy changes, the date at the top changes with it. Questions are welcome at privacy@jumpable.com.