Privacy Policy

Churun | Last updated: June 2026

This Privacy Policy explains how Churun (the “App”) handles information.

1. Information We Collect

The App does not send your photos or personal information to any external server.

The App uses only the following information.

• Photo data: All editing runs entirely on your device. Nothing is sent to any external service.
• Purchase information: Managed through Apple’s StoreKit. The App does not store purchase information itself.

2. Photo Library Access

The App requests access to your photo library in order to load photos and save them back to your library. All photo data is processed on device and is never transmitted elsewhere.

3. AI Processing (CoreML / Vision)

The App uses Apple’s CoreML and Vision frameworks to generate nail and hand masks. This AI processing runs locally on your device. No communication with a cloud API takes place.

4. Subscriptions

The App offers subscription features. Payment is processed by Apple, and Apple manages your payment information. The App does not collect or store payment details.

You can cancel a subscription at any time from the Settings app.

5. Sharing with Third Parties

The App never sells or provides your data to third parties.

6. Changes to This Policy

This Policy may change without prior notice. If a significant change is made, we will announce it in the App or on this page.

7. Contact

If you have questions about privacy, please get in touch below.

Contact form

This English text is a translation provided for convenience. If it differs from the Japanese version, the Japanese version prevails.