Privacy Policy
This policy explains how JY Meter handles location, account, trip, advertising and diagnostic data on Android and iOS.
JY Meter only processes data when a feature needs it. This may include location data, phone sign-in data, trip and billing data, device diagnostics, advertising data and local settings. See the data table below for the full breakdown.
JY Meter uses background location while a metered trip is running, so it can keep accumulating distance, waiting time and fare and keep saving the route when you switch to the map, navigation, another app, or turn off the screen. Without location or background location permission, some metering, route and detail features may not work correctly.
Data is used to provide fare metering, route display, trip details, history management, account authorization, customer support, ad display, error troubleshooting and security. We do not sell personal data.
JY Meter uses third-party services such as Google Maps, Google Mobile Ads / AdMob, Firebase Authentication and Firebase Crashlytics. These services may process necessary data under their own privacy policies. We only share necessary data to provide features, meet legal requirements, protect rights, or when you actively enable sync / upload.
Local trips and settings are kept on your device until you delete a trip, clear app data or remove the app. If you enable an account or upload, server-side data is kept for as long as needed to provide sync, lookup, support, billing or legal requirements. You can request deletion through the in-app account deletion feature or the data deletion page on this site.
JY Meter is not designed for children and does not knowingly collect personal data from children. If you believe a child's data was collected in error, please contact us.
| Data type | Examples | Purpose | Shared with |
|---|---|---|---|
| Location data | Precise / approximate location, background location, route points, start/end and trip time | Calculate distance and fare, draw the route, generate trip details and history | Google Maps Platform may process map display and geo requests; sent to JY Meter's server when upload is enabled |
| Account & auth data | Phone number, sign-in state, verification result, membership authorization state | Phone sign-in, authorized use, account management and deletion verification | Firebase Authentication or an equivalent service handles sign-in verification |
| Trip & billing data | Tariff, base fare, distance, time, waiting, surcharge, fare, payback, screenshots and history | Show billing results, correct historical accounts, generate receipts and support lookups | Kept on device by default; sent to the server only when you enable sync / upload |
| Device & technical data | Device model, OS version, app version, crash logs, diagnostics | Maintain stability, troubleshoot errors, improve compatibility and review issues | Firebase Crashlytics or platform diagnostics tools may process error reports |
| Advertising data | Advertising ID, ad interaction events, device ad settings | Show ads, cap repeated impressions, measure ad performance | Google Mobile Ads / AdMob processes ad data under its policy |
| Local settings | Font size, GPS accuracy, feature toggles, driver mode, ad settings, tariff settings | Save preferences and keep a consistent experience across sessions | Usually kept on device; may be stored with account data when sync is on |
The third-party services JY Meter uses process necessary data under their own policies.
Map display, route viewing, trip maps and location-related experiences
Location requests, map interactions and technical data required by Google services
Ad display, ad performance and ad capping
Advertising ID, device information and ad interaction data
Phone sign-in, verification code checks and account state
Phone number, verification state and sign-in session data
Crash analysis, release stability and error troubleshooting
Crash stacks, device model, OS version, app version and diagnostics
To access, correct, export or delete your data, email tianci.engineer@gmail.com. Please include your platform, app version, sign-in phone number or information that identifies the trip, so we can verify your identity and process the request.
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