No workout uploads
VO2Cue does not upload workout data. If you choose to send feedback, the subject and message are delivered to the developer.
Privacy, without the fine-print fog
Your workout stays yours.
VO2Cue is a private-by-default interval coach for iPhone and Apple Watch. It has no account, advertising, analytics, tracking, or developer-operated server.
The short version
Local by design
Profiles, settings, and workout history are stored on your devices.
Health is optional
HealthKit access happens only after you grant Apple’s permission.
01 Scope
This Privacy Policy applies to the VO2Cue app on iPhone and Apple Watch. In this policy, “collect” means transmitting data off your devices to VO2Cue or to a service operated on VO2Cue’s behalf. Data processed only on your devices is not collected by VO2Cue.
02 Data used by the app
Workout profiles and settings
VO2Cue stores your interval durations, repeat counts, cue preferences, activity choices, and related settings in the app’s local storage. This information is used to run the workouts you configure.
Local workout history
VO2Cue stores completed workout details such as the profile name, activity type, start and end times, duration, and completion status. This powers the Progress screen and weekly active-minute goal. VO2Cue does not upload this history to us.
Home Screen widgets
The small and medium widgets use a local snapshot of your weekly goal, session dates and active minutes, and the name and identifier of the workout offered by the medium widget. The app shares this snapshot with its widget extension through an on-device App Group. Workout notes and HealthKit data are not included in the widget snapshot. This information is not uploaded.
Apple Health and HealthKit
If you grant permission, VO2Cue can read workout information and live heart rate during an active Apple Watch workout, and can write completed workouts to Apple Health. Health data is used only to provide workout and fitness features to you. It is not used for advertising, marketing, profiling, or data mining, and it is not sold or shared with third parties.
iPhone and Apple Watch sync
VO2Cue uses Apple’s WatchConnectivity framework to transfer workout profiles from iPhone to Apple Watch and completed workout records back to the paired iPhone. This is direct device-to-device app functionality managed by Apple’s operating systems; VO2Cue does not receive a copy.
Optional feedback
When you tap Send in the feedback form, your subject and optional message are sent through FormSubmit to the developer’s inbox to handle issues, feature requests, and other feedback. Please do not include sensitive information. FormSubmit retains submissions for 30 days; delivered emails remain in the developer’s inbox until deleted. See FormSubmit’s Privacy Policy. You can request deletion using the feedback form with enough detail to identify your submission.
03 What we do not collect
- Names, email addresses, or account credentials, unless you voluntarily include personal information in feedback
- Health, heart-rate, or workout data on a VO2Cue server
- Location, contacts, photos, or browsing activity
- Advertising identifiers or cross-app tracking data
- Analytics, diagnostics, or crash reports through a third-party SDK
VO2Cue contains no advertising SDK, analytics SDK, tracking technology, or developer-operated backend.
04 Your choices and permissions
HealthKit access is optional. Apple presents the permission request and lets you grant or deny each supported data type. You can change VO2Cue’s access later in Apple Health or the privacy settings on your device. If you decline or revoke access, the timer, cues, custom profiles, and local history continue to work; live heart rate and saving workouts to Apple Health may be unavailable.
05 Retention and deletion
Local profiles, settings, and history remain on your devices until you edit or delete them or remove the app. You can clear VO2Cue workout history inside the app. Removing local VO2Cue history does not delete workouts already saved to Apple Health.
You control HealthKit records through the Apple Health app and can delete them there. Device backups and Apple Health data are managed under your Apple account and Apple’s policies.
06 Apple platform services
VO2Cue uses Apple-provided services including HealthKit, WatchConnectivity, audio, speech, and haptics. Apple may process information as part of operating your devices, Apple Health, the App Store, and related services under Apple’s Privacy Policy. Optional in-app feedback is delivered through FormSubmit. Only the subject and message you enter are submitted; workout and Health data are not attached. FormSubmit processes the submission and associated network information to deliver the email.
07 Security
VO2Cue relies on Apple’s app sandbox, device security, and HealthKit protections. Workout profiles and full history are stored in the app’s private container. The limited widget snapshot is stored in a local container shared only with VO2Cue’s widget extension. No method of electronic storage is completely risk-free, but avoiding accounts and external servers materially limits the data exposed beyond your devices.
08 Changes to this policy
If VO2Cue’s data practices change, this policy will be updated before the new practices take effect. The date at the top of this page identifies the latest version.
09 Contact
Questions about this policy can be submitted through the VO2Cue GitHub issue tracker. Because issues are public, please do not include health information or other sensitive personal data.