Privacy & Data

Your Data, Your Device

Nexus V3 is a local-first application. Your learning data never leaves your device.

Data storage

LOCAL DEVICE

All learning data is stored in your browser's IndexedDB on this device only.

Cloud synchronization

NOT ENABLED

Progress does NOT automatically sync across devices. Use Export to transfer.

Backend database

NOT REQUIRED

The application works fully without a server-side database.

Analytics

LOCAL ONLY

Learning analytics are calculated from your local data. No third-party tracking.

Personal information

NOT COLLECTED

No email, phone, name, or account required. Anonymous local profile only.

Security

Your learning data is stored locally in this browser/device. Browser-local storage is NOT equivalent to a secure vault. Do not store sensitive personal information in the application. Use Export Data to create backups.

Your Controls

Export / Import / Delete Delete My Data

No Third-Party Tracking

This application does not use tracking pixels, advertising trackers, or third-party behavioral analytics. All learning measurements are computed locally from your own data.