Sonavo Meter Privacy Policy for Google Play
1. Scope and contact
Sonavo Meter (the “app”) for Google Play is provided by 杭州领鹏科技有限公司 (Hangzhou Lingpeng Technology Co., Ltd.). This policy applies to the Android app distributed through Google Play and explains how microphone input, measurements and local settings are handled.
Contact: hzleadpeng@gmail.com.
2. Microphone and audio processing
Microphone access is used only to measure sound levels. The app captures audio for on-device calculation only after you choose to start or continue, acknowledge the explanation, and grant system permission. Capture stops when paused, when the app enters the background, or when you leave the Measurement and Reference pages. Raw audio is processed temporarily on your device; it is not saved as a recording or uploaded to our servers.
If you deny or revoke microphone permission, you cannot start measuring; once inside the app you can still view Reference and Settings. The app does not provide continuous background recording, sound source identification or speech recognition.
3. Information stored on your device
The app stores calibration adjustments, audio input information used to check calibration, theme, refresh interval and display preferences locally. It also stores your privacy choice, the applicable policy version and revision, and the time of your choice.
The app automatically saves your last measurement, including readings, statistics, elapsed time and up to 301 recent trend points. It restores this measurement in a paused state; select Continue to resume measuring. These data contain no raw audio and are not synchronized to a cloud service operated by the app. Each measurement is also archived when paused, including date, duration, statistics and correction; you can view, annotate, share or delete individual records in Report under saved measurements.
Reset clears the last measurement; later measurements update it. Calibration can be cleared on the calibration page. Settings and privacy choices remain until changed, app data is cleared, or the app is uninstalled. System backup and restore depend on your device settings.
4. Saving, exporting and sharing
Report images, text summaries and CSV files are generated only when you choose to save or share. CSV files contain up to the latest 301 trend points and no raw audio. Exporting or sharing may create temporary files in the app cache, which the app or system can clear.
Images are saved using the applicable system permission or save picker. The Android app uses the applicable system saving mechanism. The app does not read other photos in your library. Denying permission or canceling a save does not affect microphone measurement.
Sharing opens the system share panel; you choose the recipient and confirm sending. Recipients, cloud storage and social apps handle information under their own policies. Exported, saved or sent copies are not automatically deleted when you reset or uninstall the app; manage those copies where they were saved.
5. Network, third parties and permissions
The app requires no account and contains no advertising or behavioral analytics SDK. It does not proactively upload audio, measurements or settings to our servers. For measurement, it does not request access to contacts, location, phone, camera or the list of installed apps. It does not use an advertising SDK to obtain device identifiers for advertising.
Photo, file saving, sharing, backup and restore functions are provided by the operating system or services you choose. When you visit this policy website, the browser and website server process technical information such as IP address, request time and browser information to serve the page. This does not mean the app uploads microphone audio or measurements. This page does not load advertising or analytics scripts.
6. Your choices and deletion
On first use, you can read the policy and choose to agree or not agree. Opening the policy alone does not signify agreement. You can review the policy or withdraw consent in Settings under About and Privacy, and manage microphone and applicable photo-add permissions in system settings.
Withdrawing consent stops measurement and returns to the welcome page, while retaining local measurements and settings; these can be viewed again after you agree. Reset deletes the last measurement; delete archived records individually in Report under saved measurements. Clearing app data or uninstalling removes local app data. The app has no account to close.
For questions or requests to access, correct or delete personal information, contact us at the email address above. We will verify and respond to your request. Please do not send recordings or sensitive information unrelated to your request.
7. Protection and children
Measurements are primarily stored locally and protected by operating system app isolation and permission controls. Protect your device and exported copies and keep your operating system up to date. Minors should learn about and use the app under a guardian’s guidance; guardians may contact us with questions.
8. Measurement limitations
Readings are estimated sound levels calculated from the device microphone and are affected by the device, calibration and environment. The average is an arithmetic average of dB readings, not equivalent continuous sound level (Leq). The app is for everyday observation and relative comparison and does not replace a professional sound level meter, certified measurement, medical judgment or safety assessment.
9. Changes to this policy
We will update this page, the in-app policy and the date when needed. If the purposes, methods or types of information handled change materially, we will notify you in the app and seek renewed consent where required. Continuing to browse this webpage alone does not signify agreement to new processing.