Privacy Policy

1. Who we are

Cragen ("Cragen," "we," "our") is a fitness logbook for iOS and Android. This Privacy Policy describes how the Cragen mobile app and cragen.app handle information.

Privacy questions: privacy@cragen.app.

2. The short version

• Your training data stays on your device by default. Workouts, programs, templates, body metrics, and preferences are stored locally unless you turn on optional iOS account backup.
• Account backup is optional. If you sign in with Apple and back up your account, Cragen uploads a backup snapshot of your logbook so it can be restored on another iPhone.
• AI Coach is optional. If you use AI Coach, Cragen may send your message plus relevant profile, workout, body metric, and goal context to a third-party AI provider so it can generate a response. We do not include your full name in AI context.
• Completed-block explanations are optional. If you opt in while signed in, Cragen may send a small summary of recorded block facts and finalized training changes to a third-party AI provider. It excludes your name, email, account identifier, raw health records, and unrelated workout history.
• Emails are purpose-limited. If you email support, email privacy, or contact us from this site, we receive your email address and message only for that request.
• Health data flows in only.If you grant permission, we read steps, sleep, and body weight from Apple Health or Health Connect. We don't write back. Raw health samples are processed on device; body metrics saved into Cragen may be included in account backup or AI Coach context if you enable those features.
• No advertising trackers. Cragen contains no third-party advertising SDKs and does not engage in cross-app or cross-site tracking.
• Crash reports only. Anonymous crash reports help us fix bugs. They never contain your workouts, health data, or identifiers tied to you.
• You can leave at any time. Export your workouts as CSV, request a full account export, and delete your optional account backup from Settings → Account. Uninstalling the app removes local data from your device.

3. Information stored on your device by default

The following data is created and stored locally on your device, in the platform's standard storage (SQLite for structured data, SecureStore for preferences and keys). It is not transmitted to Cragen unless you choose optional iOS account backup or use a cloud feature such as AI Coach.

• Workout logs — exercises, sets, reps, weight, RPE/RIR, notes, rest times, timestamps.
• Programs, templates, training blocks, and block history.
• Body weight entries you enter manually, plus your unit and preference settings (e.g. default rest, units, theme).
• An anonymous per-device identifier generated on first launch. It is not linked to your name, email, phone, or any external account.

4. Optional iOS account backup

On iPhone, you can sign in with Apple from Settings → Account to back up and restore your Cragen logbook. When enabled, Cragen may transmit a backup snapshot containing workouts, programs, templates, custom exercises, preferences, body metrics, and account metadata such as your Apple-linked email and user ID.

Raw Apple HealthKit and Health Connect samples, health-permission state, and provider connection metadata are excluded from account backup and remain on the device that received them.

Account backup is not required to use the app. Android account backup is not available until an Android sign-in provider is added.

5. Optional AI Coach

If you use AI Coach, Cragen may process your prompt, training goal, age range or age value if provided, height, weight, selected equipment, recent workouts, body metrics, and summarized progress trends to create a coaching response. We minimize this context and do not include your full name.

AI Coach responses are for general fitness education and workout planning only. They are not medical advice and should not be used to diagnose, treat, or manage any medical condition, injury, eating disorder, or emergency. For health concerns, consult a qualified clinician.

AI Coach may use a third-party large language model provider. When that provider is used, the data sent for your request may be processed where that provider operates. Cragen does not sell AI Coach data or use it for advertising.

The optional completed-block explainer sends only a minimized, structured summary of facts already recorded or finalized by Cragen's training engine. The provider writes a short explanation; it does not calculate or change your training. Cragen validates the response, stores an account-linked cached copy so the same block is not generated again, and keeps the built-in explanation whenever the provider is unavailable or its response is unsupported.

6. Apple HealthKit (iOS)

If you grant Cragen permission via the iOS Health permission sheet, Cragen reads the following data from Apple Health to display trends and context inside the app:

• Daily step count
• Sleep sessions
• Body weight entries

HealthKit data is read-only. Cragen does not write to Apple Health and does not modify your Health data. HealthKit data samples are processed on your device only and are never transmitted to Cragen or any third party. Body weight values you save into your Cragen profile or history become Cragen records and may be included in optional account backup or optional AI Coach context.

You can revoke HealthKit access at any time in iOS Settings → Privacy & Security → Health → Cragen.

7. Health Connect (Android)

On Android, Cragen integrates with Health Connect using the same principles as our HealthKit integration. With your explicit permission, Cragen reads:

• Steps
• Sleep
• Weight

Health Connect samples are read-only, processed on-device, and never transmitted off-device by Cragen. Body weight values you save into Cragen become Cragen records and may be included in optional account backup or optional AI Coach context. You can revoke access at any time from Health Connect's settings.

8. Crash reporting (Sentry)

Cragen uses Sentry to receive anonymous crash and error reports so we can fix bugs. Reports include technical context such as:

• Stack traces and the file/line where the error occurred
• Device model and operating system version
• App version and build number
• A randomly generated install identifier (not tied to you)

Crash reports do not include your workouts, programs, body weight, HealthKit/Health Connect data, name, email, phone number, IP-based location, or any other personally identifying information. Personally identifying scopes (PII fields, request bodies, breadcrumbs containing user input) are stripped before transmission.

9. Emails and support requests

If you email us for support or privacy questions, your email client sends your email address and message to Cragen. We use that information only to reply to your request. We do not sell it, add it to advertising audiences, or link it to your on-device training history.

You can ask us to delete support or privacy emails by writing to privacy@cragen.app.

10. App Tracking Transparency (iOS)

Cragen does not track you across apps or websites and does not present the App Tracking Transparency prompt. Our iOS privacy manifest (PrivacyInfo.xcprivacy) declares no tracking domains and declares the data categories used for app functionality: email address, name, user ID, fitness, health, crash, and performance data. The crash and performance categories are not linked to your identity.

11. Data we do NOT collect

To be explicit, Cragen does not collect:

• Your phone number or postal address
• Your raw Apple HealthKit or Health Connect samples
• Your contacts or precise location
• Photos, unless you deliberately upload an optional progress photo; uploaded progress photos are encrypted at rest and deleted with your account.
• Advertising identifiers (IDFA / GAID)
• Raw card numbers or account credentials of any kind

12. Your controls

• Export. Export your workout history as CSV from Settings → Export workouts (CSV) at any time. If you have a cloud account, you can request a full account export from Cragen.
• Delete local data. Uninstalling the app removes locally stored Cragen data from that device, including the per-device identifier.
• Delete account backup. If you use optional iOS account backup, go to Settings → Account → Delete Account to delete your Cragen account and server backup.
• Health permissions. Revoke HealthKit / Health Connect access at any time in your OS settings. Cragen will detect the change on next launch.
• Completed-block explanations. You choose whether to enable generated explanations from Block Review and can turn them off there at any time. The built-in explanation remains available.
• Crash reporting. If you do not want Cragen to send anonymous crash reports, contact privacy@cragen.app and we will document the opt-out steps for your version.

13. Children

Cragen is not directed to children under 13 and we do not knowingly collect data from children under 13. The app is rated 4+ on the App Store.

14. Security

Because Cragen is local-first, the main defenses for local data are your device's lock screen, OS-level encryption, and device backup settings. Optional account backup is transmitted over HTTPS and stored on Cragen systems so it can be restored after sign-in. We recommend keeping your device passcode/Face ID/Touch ID enabled and your OS up to date.

15. International users

If you enable optional account backup, your backup data may be processed where Cragen's hosting providers operate. AI Coach and optional completed-block explanation requests may be processed where our AI provider operates. Anonymous crash reports may be processed by Sentry on infrastructure located in the United States and the European Union.

16. Changes to this policy

We may update this policy as the product evolves — for example, when we ship new integrations or change how crash reporting works. Material changes will be reflected here with an updated effective date. Continued use of Cragen after the effective date constitutes acceptance of the revised policy.

17. Contact

Privacy questions or requests: privacy@cragen.app.
General support: support@cragen.app.