Privacy Policy — Contura iOS Body Measurement App
Effective date: 2026-07-17
Contura is designed for local, user-controlled data.
Important clarification:
- Your body measurements are stored on your device by default.
- If you enable iCloud sync, those measurements are stored in your iCloud account.
- We do not run our own backend that centrally stores your measurement history.
1. Data We Handle
In this policy, "handle" means store locally, sync through Apple services you enable, or process through selected service providers for specific features.
A) Data you create in the App
- Body part entries (waist, hip, chest, arm, thigh, calf, wrist, neck, custom)
- Measurement values and units
- Timestamps
- Optional notes
Default location: on-device storage. Optional location: your iCloud account if iCloud sync is enabled.
B) Optional Apple Health data
If you grant Health access, Contura may read and/or write supported measurements. You can revoke Health permissions at any time in the Health app.
C) Optional device permissions
- Photos: only when you choose to save/share generated images.
- Notifications: only when you enable reminders.
D) Product analytics data (Mixpanel)
We use Mixpanel for product analytics and identify analytics activity using an app installation identifier. When Apple Ads attribution is available, limited campaign, ad group, keyword, placement, conversion-type, and attribution-status fields may be associated with that identifier. The Apple attribution token is never sent to Mixpanel. We do not require account signup, and Contura does not display third-party ads.
E) Website analytics data (Cloudflare Zaraz and Google Analytics)
On the Contura website, we use Cloudflare Zaraz to send aggregated visit and interaction events to Google Analytics 4. These events help us understand landing page visits, FAQ opens, navigation clicks, and App Store click intent. They do not include body measurements, health values, notes, or app account data.
F) Subscription state data (RevenueCat)
Entitlement/subscription status, product/paywall context, technical identifiers required to validate purchases and restore entitlements, and Apple Ads campaign metadata used to measure subscription lifetime value.
G) Advertising attribution data (Apple AdServices)
Apple may return whether a download or redownload was attributed to Apple Ads, together with limited organization, campaign, ad group, keyword, ad, placement, country or region, conversion, and claim identifiers. Click or impression time is present only in a detailed response after tracking permission. The attribution token is used transiently and is not stored by Contura.
2. Why We Handle This Data
- Provide core product functionality
- Sync user data across devices (if iCloud is enabled)
- Support optional sharing and reminders
- Operate subscriptions, validate access, and support restore flows
- Improve product quality through aggregated usage analytics
- Measure the effectiveness of Contura's own advertising and post-install product outcomes
We do not sell personal information.
3. Where Data Is Stored or Processed
- On your device: Measurement records are stored locally by default.
- In your iCloud account (optional): If enabled, Apple CloudKit/iCloud keeps your data in sync across your devices.
- In Apple Health (optional): If enabled by you, supported measurements can be read/written through HealthKit.
- In Photos (optional): Saved images are written to your Photos library only with permission.
- In Mixpanel (analytics processor): Product analytics events and related analytics properties are processed by Mixpanel.
- In Cloudflare Zaraz and Google Analytics 4 (website analytics processors): Aggregated website visit and interaction events are processed to understand website performance and conversion intent.
- In RevenueCat (subscription processor): Subscription and entitlement processing is handled by RevenueCat.
- In Apple Ads and AdServices (advertising attribution provider): Apple generates privacy-preserving attribution responses for eligible App Store advertising interactions.
4. Your Controls
- Change units in Settings.
- Grant/revoke Health, Photos, Notification, and Tracking permissions in iOS settings and related Apple apps.
- Export/import data using in-app data tools.
- Delete all local app data using the in-app delete option.
- Manage iCloud data through Apple ID/iCloud settings.
- Manage Health data in Apple Health.
- Manage purchases/subscriptions through Apple account settings.
5. Children's Privacy
Contura is not intended for children under the age required by local law. We do not knowingly collect personal information from children.
6. Security
We rely on iOS and iCloud security controls where applicable and apply reasonable safeguards. No storage or transmission method is 100% secure.
7. International Processing
Depending on enabled features, data may be processed on your device, in Apple infrastructure, and by our named service providers. These systems may operate in multiple regions.
8. Your Rights
Depending on your jurisdiction, you may have rights to access, correct, export, or delete data, and to object to or restrict certain processing. Many of these controls are available directly through the App, iOS settings, iCloud settings, and Apple Health.
9. Policy Updates
We may update this policy from time to time. Material changes will be reflected by updating the effective date.
10. Contact
If you have privacy questions or requests:
- Email: [email protected]
- Developer: ldjing studio
- In the App: Settings > About > Privacy Policy
- App Store: use the App support page