eRMT Privacy Policy

Effective date: July 22, 2026

This Privacy Policy explains how eRMT (the "App") accesses, collects, uses, stores, shares, retains, and deletes user data. The App is operated by Mu Fei Tongchuang (Chongqing) Technology Co., Ltd. If you do not agree with this Privacy Policy, please do not use the App.

1. Developer and Privacy Contact

Developer / operator: Mu Fei Tongchuang (Chongqing) Technology Co., Ltd.
App name: eRMT
Privacy contact: service@sonmolmed.com

2. Data We Collect or Store

The App is used with a respiratory training device and stores the following data on your device:

• Profile data you enter in the App, such as nickname.
• Training and test records, such as training duration, breathing measurement values, resistance level, unit, chart data, scores, and record creation time.
• App settings and local preferences, such as whether you have viewed the guide or accepted the privacy notice.
• Bluetooth-related device connection status needed to find and connect to supported training devices.

The App does not require you to create an online account and does not require your email address or password for normal use.

3. Permissions and Why We Use Them

• Bluetooth permissions are used to scan for, connect to, and communicate with supported respiratory training devices.
• Location permission may be requested on older Android versions because Android requires location permission for Bluetooth scanning on those systems. The App does not use location permission to track your physical location.
• Internet permission may be used to open official websites, privacy policy pages, or contact links.

4. How We Use Data

We use the data described above only to provide App functions, including:

• Creating and displaying your local user profile.
• Connecting to the respiratory training device by Bluetooth.
• Recording, displaying, and managing training, test, and game results.
• Improving App stability and user experience.

5. Data Sharing

We do not sell your personal data. Training records and nickname data are stored locally on your device and are not uploaded to our server by the App. If a future version introduces cloud sync, account services, analytics, advertising, or other third-party data sharing, this Privacy Policy will be updated before those functions are used.

6. Data Security

We use reasonable technical and organizational measures to protect user data. Because the App stores training data locally on your device, you should also protect your device with a secure screen lock and keep your operating system up to date.

7. Data Retention

The App stores your nickname, settings, and training/test/game records locally on your device for as long as you keep them in the App. We retain this local data until you delete it, log out and clear local records through the App, uninstall the App, or clear the App's storage through your device settings.

If you contact us by email, we may retain your email address and correspondence only as long as needed to respond to your request, provide support, maintain business records, or comply with legal obligations. Unless a longer period is required by law, support correspondence is generally retained for no longer than 24 months.

8. How to Delete Your Data

You can delete data stored by the App in the following ways:

• Delete individual training or test records from the relevant record/detail pages where deletion is provided.
• Use the App's logout function: open Settings, tap "LogOut", and confirm. This clears the local user profile and training records stored in the App.
• Uninstall the App from your device, or clear the App's storage in Android system settings, to remove local App data from the device.
• If you need help deleting data or want to request deletion of support correspondence, contact us at service@sonmolmed.com.

After local data is deleted from your device, we cannot restore it unless you have separately backed it up using your own device or system backup tools.

9. Children

The App is not intended for children without supervision from a parent, guardian, or healthcare professional where appropriate. If you believe a child has provided personal data without proper authorization, please contact us.

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. When we make material changes, we will update the effective date above and provide notice in the App or by other appropriate means.

11. Contact Us

If you have questions about this Privacy Policy or how your data is handled, please contact us at service@sonmolmed.com.