QRefine

QRefine Privacy Policy

Last updated: August 29, 2026

Ttech LLC (“the Company”, “we”) provides the mobile application “QRefine” (“the app”) and the Company’s website at https://qrefine.app (“the Site”). This Privacy Policy describes how information about you is handled when you use the app or the Site.

1. Information We Collect and How We Use It

1.1 QR Code Data

QR code data you scan, create, or save in the app is stored only on your device. It is never sent to the Company’s servers. When you use the backup feature, the backup file is written only to the destination you choose; the Company does not receive it.

1.2 Usage and Diagnostic Information

To improve the quality of the app and understand problems, the following information is collected through third-party services:

  • App usage information (screen views, feature usage events, app version, OS version, device model, language settings, etc.)
  • Crash logs and diagnostic information when a failure occurs

This information never includes the content of your QR codes.

1.3 Feedback and Bug Reports

When you use the in-app feedback or bug report feature, the following is sent to the Company:

  • The text you entered
  • Your email address (only if you entered it in a bug report)
  • Platform name (Android / iOS) and the time of submission
  • An anonymous user ID issued through anonymous authentication

This information is used only to respond to your inquiry and to improve the app.

1.4 Purchase Information

To process purchases of the app’s paid features (QRefine Pro) and manage your purchase status, purchase history (purchased product, purchase date, etc.), an anonymous app user ID, and device information (OS version, device model, language/region settings, etc.) are collected through RevenueCat (see below).

Payments are processed by Google Play / the App Store. The Company never receives your credit card number or other payment details. Your name and Google account / Apple Account information are not shared with the Company or RevenueCat.

1.5 Advertising Information

The app displays ads. Through AdMob (see below), advertising identifiers (Advertising ID / IDFA), device information, and ad interaction events (impressions, taps, etc.) may be collected by the advertising provider.

1.6 Site Usage (Analytics)

To understand how the Site is used and to improve it, the following information is collected through Google Analytics 4 (“GA4”, see below): the pages you view, the referring source, browser and OS type, approximate region, and similar access information. Cookies (such as _ga) are used for this purpose.

This information is not collected for the purpose of directly identifying you. You can refuse this collection by blocking cookies in your browser settings or by installing the opt-out add-on provided by Google.

2. Third-Party Services

The app and the Site use the following third-party services. Please refer to each service’s privacy policy for details on how it handles information:

3. Sharing with Third Parties

The Company does not provide your personal information to third parties without your consent, except as required by law. Information sent to the third-party services above is limited to what is necessary to provide each service.

4. Data Retention and Deletion

  • Usage, analytics, and crash information are retained for the periods defined by each third-party service
  • Feedback and bug reports are retained as long as necessary for support and improvement, and deleted when no longer needed
  • If you would like stored information to be deleted, please contact us at the address below

5. Security

The Company strives to protect collected information from leakage, loss, or damage. However, please note that no method of transmission over the Internet or electronic storage is 100% secure.

6. Children’s Privacy

The app and the Site do not knowingly collect personal information from children under 13. If we discover that personal information of a child under 13 has been collected, we will delete it promptly.

7. Changes to This Policy

The Company may update this Privacy Policy from time to time. The updated policy takes effect when posted on this page. For material changes, we will provide notice in the app, on the store pages, or on the Site.

8. Contact

If you have any questions about this Privacy Policy, please contact: