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App "Covoiturage : calcul des frais" (carpooling cost calculator)
Last updated: October 23, 2026
This policy describes how the mobile app "Covoiturage : calcul des frais" (formerly "Calculateur pour covoiturage", hereinafter "the App") processes your information, in accordance with Regulation (EU) 2016/679 (GDPR), the French "Informatique et Libertés" law and, for the users concerned, US privacy laws (CCPA/CPRA and state laws) and the Brazilian LGPD (see sections 14 and 15).
In short: your trips, vehicles and fill-ups stay on your phone. No account is required. Usage statistics and crash reports are sent only if you accept. The App is free and funded by advertising (Google AdMob), which you can remove with a one-time purchase or pause for 24 hours by watching a video. No data is sold for money.
The App requires no account. The data you enter is stored exclusively on your device and is never sent to the publisher:
When you request an automatic distance calculation, the place names you entered are sent to the OpenStreetMap Nominatim geocoding service to obtain their coordinates. No other data is transmitted; as with any Internet request, your IP address is visible to the service. See the OpenStreetMap Foundation privacy policy. You can also enter the distance yourself.
On first launch, the App asks whether you agree to share usage data. Without your consent, nothing is collected. If you accept:
These services receive neither your name, nor your e-mail, nor the content of your trips. You can withdraw your consent at any time in the App settings; collection then stops immediately.
The App displays banners and, to a limited extent, full-screen ads, provided by Google AdMob. To display and measure these ads, Google may process your device's advertising identifier, your IP address (from which an approximate location is inferred) and technical information.
Rewarded video: if you wish, you can watch a video ad (also provided by Google AdMob) to stop seeing banners for 24 hours. Data is processed in the same way as for other ads; the end time of this period is stored on your device.
In the European Economic Area, the United Kingdom and Switzerland, a Google consent form (Google UMP) lets you accept or refuse personalized ads. If you refuse, only non-personalized ads are shown. In the United States, a privacy message lets you refuse the sale or sharing of your data (see section 14). You can also reset or delete your advertising ID in the Android settings (Google, Ads). See how Google uses advertising data.
The one-time purchase that removes advertising is processed entirely by Google Play (Google Play Billing). The publisher does not receive your payment information: the App only checks with Google Play whether the purchase was made, and stores that result on your device.
If you enable it, the weekly summary is scheduled on your device. No publisher server is used and no data is transmitted to send it. You can disable it in the App settings or in Android's.
At launch, the App reads a public document hosted on Google Firebase to find out whether a new version is available. This reading transmits no data about you.
The App lets you export your trips in CSV format. The file is generated on your device and is shared only if you choose to send it through your system's share sheet (e-mail, messaging, cloud...). The publisher never has access to these files.
Your data is neither sold nor rented. The only recipients are the technical providers mentioned above: Google Ireland Limited (Firebase, AdMob, Google Play) and the OpenStreetMap Foundation. Some may process data outside the European Union, notably in the United States, under the EU-U.S. Data Privacy Framework or the European Commission's standard contractual clauses.
Depending on your phone settings, Android may automatically back up the App's data to your Google account and restore it on a new device. This backup is managed by Android and Google; the publisher has no access to it. You can disable it in your phone settings (System, Backup).
You have the rights of access, rectification, erasure, objection and withdrawal of consent. The "Delete all my data" button in the Settings immediately erases all data stored on your device. Since Firebase data is pseudonymous, the publisher cannot link it to your identity; for any request, write to maxdevapp@alwaysdata.net.
You also have the right to lodge a complaint with the CNIL (French data protection authority): www.cnil.fr, or with the authority of your country of residence.
This section applies to residents of California and of other US states that have a privacy law. It supplements the rest of the policy.
How to opt out of sale or sharing: use the US privacy message ("Do not sell or share my personal information") displayed by the App, which you can reopen from the ad choices in the Settings, or reset/delete your advertising ID in the Android settings.
Your rights: to know what data is collected and how it is used, to obtain a copy, to have it deleted or corrected, to opt out of its sale or sharing, and not to be discriminated against for exercising these rights (the App remains usable in the same way). To exercise them, write to maxdevapp@alwaysdata.net; you may appoint an authorized agent. We respond within the legal deadlines (45 days at most for California). As the publisher holds no identity linked to Firebase and advertising data, we may ask you for information (for example the advertising ID concerned) to verify your request. The App is not directed at children under 16 and does not knowingly sell or share their data.
For users located in Brazil, the controller is the publisher (Maxim Cuynat, maxdevapp@alwaysdata.net), who is also the contact point for any request under Law No. 13,709/2018 (LGPD).
All communications with third-party services are encrypted (HTTPS/TLS). Local data is protected by Android's app sandboxing, which makes it inaccessible to other applications; its security also depends on the protection of your phone (screen lock).
The App is not directed at children under 16 and does not knowingly collect any data about them.
This policy may be updated to reflect changes to the App or to regulations. The date of the last update appears at the top of this document.