Applies to Range Freely apps from Bluebird Foundry LLC (currently Range Freely: ECG Recorder). Last updated 30 October 2026.
The short version: the app has no account, no server, and no analytics. Everything it records is written to your own device and stays there until you decide to share it.
While you record a session, the app stores on your device: the ECG waveform and beat-to-beat intervals streamed from your chest strap, heart-rate values, any markers or notes you add, and the profile details you enter yourself (such as name, age, weight and maximum heart rate) which are used to calculate your zones. It also stores the identifier of the chest strap you paired with, so it can reconnect to it.
Nowhere, unless you send it. The app does not transmit your recordings anywhere. There is no Range Freely account, no cloud sync, no backup service of ours, and no third-party analytics or advertising SDK in the app. We do not receive your recordings and we cannot see them.
When you export a session — a review PDF or a Kubios CSV — the file is handed to the standard iOS share sheet and goes wherever you send it. At that point it is covered by the privacy policy of whatever service or app you chose, not by this one.
The app does not request location, contacts or photos access.
This version does not read from or write to Apple Health, and does not ask for Health permission. Health integration is planned for a future release — when it arrives it will be optional, it will ask you for permission explicitly, and this page will be updated before that version ships. Health data is never sent to us either way; HealthKit access, if you grant it, stays between the app and your own device.
If you use the watch companion, session control and the values shown on your wrist are exchanged directly between your iPhone and your Apple Watch using Apple's own device-to-device connection. That data does not pass through us.
Range Freely apps may offer an optional yearly subscription through the App Store. Apple handles the payment and sends us nothing that identifies you. The app checks your subscription status with Apple on your device.
To count free recordings and free HRV readings, the app keeps two small counters in the iOS Keychain on your device. iOS can keep Keychain items after an app is deleted, so these counters may survive a reinstall. They contain no personal information.
Deleting a session in the app removes it from your device. Deleting the app removes its stored sessions and settings along with it, apart from the Keychain counters described above. Because we never held a copy, there is nothing for you to ask us to erase.
If you write to us for support, we keep your message for as long as it takes to help you and to keep a record of the issue. Please do not send recordings or personal metrics; any that arrive are deleted. Our email is hosted by Google Workspace. We don't sell, rent or share it, and we don't add you to a mailing list unless you ask to be told about a release.
Range Freely apps are not directed at children under 13, and we do not knowingly collect information from them.
Downloads and purchases happen on Apple's App Store, under Apple's privacy policy. Apple may provide us with aggregate, anonymous statistics about downloads and crashes. We never receive your name or contact details through the App Store.
If this policy changes in a way that affects you, we will update the date at the top of this page and, where the change is significant, note it in the app's release notes.
Bluebird Foundry LLC — privacy@rangefreely.app