DuoNavi is engineered with a strict Local-First philosophy. We do not collect, retain, monitor, or stream your GPS coordinates, driving history, camera feeds, or vehicular telemetry to any external servers.
GPS coordinates and vehicle speeds are rendered directly on-device with zero proxying or cloud recording.
The sole network communication is an encrypted SHA-256 token handshake to verify license status.
Third-party applications remain isolated inside iOS sandboxes with zero cross-app data leaks.
DuoNavi functions as a local in-car multi-window utility running inside device memory, rendering frames directly to the vehicle head unit via standard CarPlay protocols. All screen-splitting algorithms, resolution scaling, and layout rendering execute purely on your iPhone GPU/CPU without any cloud runtime dependencies.
Inside the DuoNavi iOS application, we enforce a strict zero-retention policy with zero third-party advertising SDKs or user tracking. Specifically, the DuoNavi app on your iPhone does not collect, store, profile, or monetize the following data categories (distinguished from basic anonymous page-view analytics on our marketing website):
No geolocation coordinates, waypoints, or route tracking history.
Real-time velocity readouts remain transient on-device memory only.
The DuoNavi iOS app contains zero advertising trackers (such as Meta Pixel or Google Ads) and never accesses or streams dashcam feeds or microphone audio.
Operates purely via UI framebuffers with zero vehicle sensor readouts.
To verify genuine software ownership and manage authenticated device slots, DuoNavi conducts one single network handshake over SSL/TLS 1.3 HTTPS:
This payload contains zero location data, zero user identifiers, zero phone contacts, and zero behavioral telemetry.
When running applications such as Google Maps, Waze, Vietmap, Apple Maps, YouTube, or Spotify within DuoNavi split-screen views, each app executes inside its native iOS sandbox. Account credentials, navigation queries, and media streaming data are governed solely by their respective vendor privacy policies. DuoNavi does not intercept, log, or modify these isolated data streams.
In accordance with global data protection principles, users retain full autonomy regarding their license records:
Direct any inquiries or deletion requests to our team via the Official Support Hub.
