Privacy Policy

Summary

GreaseTrail was built to help you keep track of maintenance on your vehicle, not to collect data about you. There's no account, nothing is sent to a server, and there's no analytics or advertising software inside the app.

What data we collect

GreaseTrail does not collect personal data. The app never asks for your name, email address, or any other identifying information, and it has no login or account system.

The data you enter to use the app — such as vehicle details, mileage, maintenance records, and notes — is used only to power the app's functionality. We have no access to it and never receive it.

One optional feature is an exception: when adding a car, motorcycle, or scooter, you can choose to look up a Dutch license plate to auto-fill the vehicle's make, model, and fuel type. If you use it, the plate number you type is sent directly from your device to RDW, the Dutch vehicle authority — see Third parties below. This only happens when you tap "Look up," and the option is only shown when your device's region is set to the Netherlands.

• No account registration or login system
• No location data — GreaseTrail only checks your device's region setting, never your GPS location
• No third-party analytics, trackers, or crash-reporting services
• No advertising identifiers

Where your data lives

Everything you enter into GreaseTrail is stored locally on your device. There is no GreaseTrail server or cloud database that this data is sent to. If you delete the app, its data is deleted from your device as well.

If you use your own device backup (for example via iCloud), that backup may also include the app's data. That happens entirely through your device's operating system, not through GreaseTrail.

GreaseTrail also lets you export your data as a JSON backup, a CSV log, or a PDF report, and import a file back in. These exports are created on your device and only leave it if you choose to save, share, or send the file yourself — GreaseTrail itself never uploads or transmits them anywhere.

Third parties

GreaseTrail does not use any external advertising networks, analytics services, or tracking libraries, and it does not share your vehicle records, mileage, or notes with anyone.

The one exception is the optional license plate lookup described above. When you use it, the plate number is sent directly from your device to RDW, the Dutch national vehicle registration authority, to retrieve public vehicle data. This request goes straight from your device to RDW — GreaseTrail has no server in between and does not see or store what you look up. RDW's own privacy policy applies to that request.

Children

Because GreaseTrail does not collect personal data from any user, no separate age verification or parental consent is required to use the app.

Your rights

Since all of your data lives locally on your own device, you're always in full control: you can edit or delete data within the app, or wipe everything at once by deleting the app. There's no action required on our part to handle access, correction, or deletion requests, because we don't retain anything to adjust.

Changes to this policy

If this privacy policy changes, we'll publish the updated version on this page with a new date at the top. Significant changes that affect how the app works will also be explained in the app's release notes.

Contact

Questions about this privacy policy or about GreaseTrail? Feel free to reach out at mail@ralphlemai.re.