Last updated: 2026-10-20
1. Introduction
FuelLog (the "App") helps vehicle owners track fuel refills, mileage, service and parts expenses. The App is provided by Byteqo. This policy explains what information the App handles and your choices.
2. Information you enter
You can enter vehicle details (name, brand, model year, purchase price, odometer, license plate), fuel refill entries (liters, amount, price, odometer, station name) and service entries (costs, parts, garage name, notes), service reminders, document expiry dates (for example insurance or registration), trips, and optional photos of receipts. You choose what to enter.
3. Where your data is stored
All data is stored on your device, in the App's private storage. Using the App does not require an account. The App contains no analytics, advertising or tracking software, and we do not sell or share your data. Receipt photos are saved in the App's private storage on your phone only; they are never uploaded and are not included in backup files or the cloud backup. Other data leaves your device only if you turn on the optional cloud backup described in section 6.
4. Permissions
The App requests only the Android internet permission, which is used solely for the optional cloud backup. It does not access your location, contacts, microphone or files, and it has no camera or storage permission. If you tap "Camera" or "Gallery" to add a receipt photo, the Android system camera or photo picker opens and hands over only the picture you choose.
5. Backup and restore
In Settings you can export a backup file or CSV spreadsheet files of your data and share them with the Android share sheet (for example to save them in your own cloud storage or send them to yourself), and you can import a backup file you choose. You can also copy a backup as text to the clipboard and paste it back later. All of this happens only when you tap the button, and the files stay under your control; we never receive them. Text on the clipboard may be readable by other apps on your device, so paste it somewhere safe and clear it afterwards. Restoring a backup replaces the data currently in the App.
6. Optional cloud backup (Google account)
Only if you choose "Sign in with Google" in Settings, the App uses Google Firebase (Authentication and Cloud Firestore) to store a compressed copy of your FuelLog data (vehicles, refills, services, odometer readings, reminders, document dates and trips; not receipt photos) together with your Google account ID and email address. This lets you restore your data on a new phone. With Auto backup on, changes are uploaded automatically while you are signed in. The copy is private to your account: security rules allow only you to read or write it, and we do not use it for advertising, analytics or any other purpose, and we never sell or share it. Data is processed by Google as our service provider. You can sign out at any time, which stops uploads.
In Settings, "Delete cloud data & account" permanently deletes your cloud copy and your sign-in account. You can also request deletion as explained on the account deletion page. Data on your device is not affected by deleting the cloud copy.
7. Your control
You can add, edit and delete any entry inside the App. Uninstalling the App, or clearing its storage in Android settings, permanently deletes all of its data from your device. A cloud copy, if you made one, remains until you delete it as described in section 6.
8. Children
The App is not directed at children under 13 and does not knowingly collect information from them.
9. Changes to this policy
If this policy changes, the updated version will be published on this page with a new "Last updated" date.
10. Contact
Questions about privacy: info@byteqo.com