Privacy policy

Last updated: 08/11/2026

LFPDrive

1. Controller

Remi BOURDON, publisher of LFPDrive. Contact: contact@legestionnaireauto.com.

LFPDrive is an independent application: it is neither published nor approved by BYD. “BYD” is a trade mark of its owner.

2. On your phone

LFPDrive requires no LFPDrive account. Your BYD credentials, your vehicle's history and your settings stay on your phone; uninstalling the app erases them. Your BYD password and command code are encrypted there with a key that only your phone holds. Everything that reaches us travels encrypted, and the content of tickets can be read only by you and support. The positions of the vehicle and of your phone are never sent to us. On your phone only, without sending us anything, LFPDrive keeps the last reading of each vehicle encrypted, position included if you display it, until you sign out; detects the start and end of a trip through your car's Bluetooth or Android Auto connection; and, if you give it access, reads only the notifications of the BYD app to detect when charging starts and ends. By default when the app is in French, LFPDrive passes to the DMi Navigator app, on this phone only, your vehicle's battery and fuel levels, its consumption and its characteristics, for its route calculations. DMi Navigator can ask LFPDrive to read the car again. Nothing goes through our servers. Legal basis: our legitimate interest in making our two apps work together. You can turn this sharing off in Settings.

3. BYD

To display and control your vehicle, the app uses your BYD account. Your credentials are sent only to BYD, and the vehicle data comes from BYD, which processes it under its own privacy policy. We have no access to it.

4. What reaches us

  • Support tickets: your nickname, your message, an optional photo and technical information needed to help you; the same applies to the report of an unrecognised vehicle. They are deleted 72 hours after the last message, or when the follow-up ends if support keeps them to fix a problem. Legal basis: performance of the terms of use, for the assistance you request.
  • Technical readings, if you accept them: technical data about the vehicle and the app, to improve LFPDrive. Legal basis: your consent, which you can withdraw at any time in Settings.
  • Usage measurement: a daily signal limited to the country, which can neither identify you nor follow you. Legal basis: our legitimate interest in monitoring use of the app.
  • Version ratings: if you rate a version, the rating (one to five stars), the country and the vehicle model are sent to us, with no account or vehicle identifier; a fingerprint specific to that version only prevents it from being counted twice. Legal basis: our legitimate interest in measuring the quality of each version.

Readings and signals are deleted within 10 days; only counts per country are kept. We never receive your credentials, nor the vehicle's number plate, serial number or position.

This data is hosted in France, in the European Union, by PlanetHoster. Your IP address and an installation identifier are used there only to prevent abuse. They are deleted within 10 days, or after 90 days in case of abuse.

5. Services used

  • Google: distribution of the app and optional backup to your own Google Drive, to which we have no access. Google may transfer data outside the European Union under the Data Privacy Framework (its policy: policies.google.com/privacy).
  • OpenStreetMap: the maps, provided by the OpenStreetMap Foundation, in the United Kingdom (a country recognised by the European Union as providing adequate protection), which receives your IP address and the area displayed.

6. Your rights

Access, rectification, erasure, restriction, objection, portability and withdrawal of consent: contact@legestionnaireauto.com. Complaints: your data protection authority, in France the CNIL (www.cnil.fr).

Only your BYD account is essential, as the app cannot work without it; everything else is optional. No automated decision is made about you.

7. Updates

This policy may change with the app. Its last update date appears at the top, and its current version remains available in the app and on legestionnaireauto.com.