Privacy Policy

Last Updated: July 14, 2026

Welcome to Lux Light Meter: Illuminance (hereinafter referred to as "we" or "the App"). Protecting your privacy is of utmost importance to us. This Privacy Policy explains our data handling practices.

1. Information Collection

This App does not collect, store, or transmit any personal user information. We do not ask you to provide your name, email address, phone number, or any other personally identifiable information.

2. Local Data Storage

This App only stores the following information locally on your device:

• Measurement records - single and continuous illuminance results you choose to save
• App settings - such as preferred units (lux / fc), default measurement mode, and related preferences
• Calibration factors - optional correction values for front and/or rear camera estimation
• Onboarding / permission state - to remember whether first-run guidance has been shown

This data is stored only on your device and will not be uploaded to any server or shared with third parties.

3. App Permissions

This App may request the following permissions to provide core functionality:

• Camera access: Used to estimate illuminance and related light metrics from the camera sensor. Camera frames are processed on device for measurement and are not uploaded by us.

We do not use these permissions to collect personal information.

4. In-App Purchases

This App offers subscription options (weekly, yearly) and lifetime purchase for Pro features. All purchases are processed through Apple's App Store and are subject to Apple's terms and conditions. We do not collect or store any payment information.

5. Analytics and Crash Reporting

This App does not use any third-party analytics tools or crash reporting services. We do not collect usage statistics or error logs.

6. Children's Privacy

Our App is suitable for users of all ages. We do not collect any personal information from any users, including children, fully complying with the Children's Online Privacy Protection Act (COPPA) and other applicable child privacy protection regulations.

7. Third-Party Links

This App may include links to our support, privacy, or terms pages, and purchase flows managed by Apple. Outside of Apple's App Store services, we do not integrate third-party tracking SDKs.

8. Changes to Privacy Policy

If we make any changes to this Privacy Policy, we will update the policy content on this page and may notify users through in-app notifications. We recommend that you regularly review this policy to stay informed of any changes.

9. Contact Us

If you have any questions or suggestions regarding this Privacy Policy, please contact us at:

Email: [email protected]