N Nuclides

Google Play edition

Nuclides Privacy Policy

Nuclides (the App) processes only the information necessary to provide user-requested features, Premium entitlements, security controls, and troubleshooting. We do not sell personal information or use it for advertising profiles or cross-app tracking. Online weather, maps, radiation monitoring, plume simulation, and subscription features transmit the data needed to complete the request to NuclideLab, the applicable app store, or the relevant service provider.

1. Account, Premium, and security information

The App stores an App account UUID in secure storage and processes necessary sign-in state, Premium entitlement, and expiration information. Google Play processes purchase and transaction data; NuclideLab processes the purchase identifiers and entitlement status needed to validate a subscription. Protected-resource requests may include the App account identifier, necessary sign-in credentials, and request metadata.

2. Location and online features

Location is read only after you initiate an action and grant permission. Nearby-radiation matching uses precise coordinates on the device; opening the real-time page sends a request to the selected external official regional page without including precise coordinates. Weather queries send a city or coordinates to NuclideLab and then to QWeather. Plume source coordinates, nuclides, source term, wind, grid, time, and stability parameters are uploaded only after you submit a cloud calculation. The App does not perform continuous background location or use location for advertising or tracking.

3. Local storage and cloud records

Local storage includes necessary settings, account identifiers, sign-in state, entitlement cache, and encrypted user data. Plume history stores at most eight safe task metadata records and does not retain task credentials, full parameters, or result files. Cloud plume tasks store submitted parameters, an App account identifier, status, credential hashes, and result metadata/files. Clearing local history does not delete cloud tasks or results.

4. Service providers, logs, and disclosure

NuclideLab, QWeather, map or official real-time pages, private cloud storage, and the applicable app store may process the information needed to complete your request. Servers may process IP address, User-Agent, request time, and status for authentication, rate limiting, security controls, and troubleshooting. We do not sell or rent personal information or disclose it for advertising profiles or cross-app tracking.

5. Privacy Policy changes

When this policy changes materially, the App asks you to review and confirm it again. The policy version and date are displayed on this page.

6. Consent, system permissions, and data requests

Tapping "Disagree" changes only the locally stored Privacy Policy consent state. It does not revoke operating-system permissions or delete local or server-side records. Location permission can be revoked in system settings, and local records can be cleared in the relevant feature. Send account, server-data, or other privacy requests to nuclides@126.com.

Document version: 4.0
Policy date: 2026-07-17
Developer: Jianfeng Song
Application name: Nuclides
Contact email: nuclides@126.com