Last updated: May 2026
📋Overview
Thank you for using Zero Meter (the "App"). This App is developed by an independent developer who takes your privacy seriously. This policy explains what data the App collects, why, and how it is used.
Core principle: The App does not require account registration, does not upload personal data to our servers, and contains no advertisements.
📦Data We Collect
| Data Type | Purpose | Storage |
|---|---|---|
| Location (lat/lon) | Calculate GPS altitude; fetch local weather forecast | Processed on-device only; never sent to our servers |
| Barometric sensor readings | Calculate pressure altitude | Processed in memory only; not persisted |
| User-saved locations | Store custom weather query places | Device-local only (SharedPreferences) |
| Weather history | Show past-day weather records | Device-local only (SharedPreferences) |
| User preferences | Language, units, refresh interval, etc. | Device-local only (SharedPreferences) |
🌐Third-Party Services
The App uses the QWeather API (qweather.com) to provide weather data. When you view weather information, the latitude and longitude of your current location are transmitted to QWeather's servers to retrieve the corresponding forecast.
Please refer to QWeather's own privacy policy at: qweather.com/en/privacy
Aside from QWeather, we do not share your data with any other third party.
🔐Permissions Required
| Permission | Reason |
|---|---|
| Fine / Coarse Location | GPS altitude, satellite status, weather queries |
| Internet access | Fetching weather data from the QWeather API |
Location is accessed only while the App is in the foreground. The App does not track your location in the background.
🛡️Data Security
All user data is stored exclusively on your device. We have no access to your location history or personal settings — they never leave your device.
Uninstalling the App removes all locally stored data from your device.
👶Children's Privacy
This App is not directed at children under the age of 13, and we do not knowingly collect personal information from children.
📝Changes to This Policy
If we make material changes to this privacy policy, we will notify you via the App or this page and update the date shown at the top.
✉️Contact
For any privacy-related questions, please email:
skywu130@163.com