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Privacy policy

Last updated: 17 October 2026

This privacy policy explains what personal data the AutoPool mobile app for iOS and Android (the “App”) processes, why, and what choices you have. AutoPool is developed and operated by Martin Huszti (Sealion), an independent developer (“I”, “me”).

1. Summary

2. Controller and contact

The controller responsible for your personal data is Martin Huszti (Sealion).
Email: seelowe.dev@protonmail.com

3. Using the App without an account

If you do not sign in, everything you enter stays on your device. This includes car names, odometer readings, trips, passengers, refuels, costs, comments and your settings. I do not receive this data.

4. Your account

You can create an account with email and password, Google Sign-In, or Sign in with Apple (iOS only). Accounts are managed by Google Firebase Authentication. When you sign in, the following is processed:

Signing in does not upload your cars, trips or refuels. Cars stay on your device until Cloud Sync is turned on for them.

5. AutoPool Cloud Sync and shared cars

AutoPool Cloud Sync lets the owner of a car back it up to the cloud and share it with other people. It requires an account and an active Cloud Sync purchase by the car’s owner. People who join a shared car need an account, but no purchase.

What is uploaded

When the owner turns on Cloud Sync for a car, its existing history and all later changes are stored in Google Cloud Firestore:

Who can see it

Everyone who is a member of a shared car can see and add to that car’s logbook, including entries made by others. Other members see you by the display name of your Google or Apple account. If there is none, they see a shortened version of your email address (for example “ma•••@example.com”). Your full email address is not shown to other members. Car owners can remove members and change or disable the join code at any time.

Please only enter information about other people (for example names of drivers and passengers) if you are allowed to share it with the members of the car.

6. Push notifications

If you are a member of a shared car and allow notifications, you are notified when another member adds a trip or refuel, marks fuel as paid, or joins the car. A notification contains the car name and, depending on the event, the odometer reading or the fuel volume and cost. It does not include the name of the person who made the change. Notifications are delivered through Firebase Cloud Messaging and, on iOS, Apple Push Notification service. You can turn notifications off at any time in your device’s system settings.

7. Purchases

AutoPool Cloud Sync is bought through the Apple App Store or Google Play. Payment is handled entirely by Apple or Google; I never receive your payment details.

To manage purchases, the App uses Adapty (Adapty Tech Inc.). After you sign in, Adapty receives your AutoPool user ID, your email address and your purchase and transaction history. Adapty’s software may also process technical device data, such as your device model, operating system and app version. The App tells Adapty not to collect your IP address or your device’s advertising ID (IDFA on iOS, advertising ID on Android). Adapty’s servers still see your IP address while the App connects to them, as any server does. I use this information only to show the purchase screen, confirm and restore your purchase, and give you access to Cloud Sync. It is not used for advertising.

Your Cloud Sync status (whether and until when it is active) is also stored in the cloud database, so that sharing permissions can be checked. It is deleted when you delete your account.

8. Security and app integrity

To protect the cloud service from abuse, the App uses Firebase App Check. It asks Google Play Integrity (Android) or Apple App Attest / DeviceCheck (iOS) to confirm that requests come from a genuine, unmodified copy of the App. This involves technical device and app information, but not your logbook data.

All data is encrypted in transit. Access to cloud data is restricted by security rules: only a car’s members can read it, and only you can read your own profile and device records. No method of storage or transmission is completely secure, but I take reasonable measures to protect your data.

9. What the App does not do

If this changes, I will update this policy and the store privacy disclosures before the change takes effect.

10. Legal bases (EU/EEA and UK users)

11. Service providers and data location

I use the following service providers, who process data on my behalf or under their own terms:

Where personal data is transferred outside the EU/EEA, for example to the United States, the transfer is protected by the EU–US Data Privacy Framework or the European Commission’s Standard Contractual Clauses.

12. Retention and deletion

Deleting your account (Settings → Delete account) removes your Firebase Authentication account, your profile, your device registrations and your memberships, removes you from shared cars, deletes your Cloud Sync status, and deletes cloud cars you own. Those cars are first marked as deleted so that no one can access them anymore, and are permanently erased about a week later, as described above. A local copy of your cars stays on your device.

Trips and refuels you added to cars owned by someone else stay in those cars, as described above for leaving a car. Purchase records held by Adapty, Apple and Google are kept as required for accounting and legal purposes.

13. Your rights

Under the GDPR and similar laws you have the right to access your personal data, have it corrected or erased, restrict or object to its processing, and receive it in a portable format. Where processing is based on consent, you can withdraw it at any time. To exercise these rights, email seelowe.dev@protonmail.com. I will reply within one month.

You also have the right to lodge a complaint with a data protection authority, in particular in the EU country where you live or work. In Austria this is the Datenschutzbehörde (dsb.gv.at).

14. Children

The App is not directed at children under 13, or under the higher minimum age that applies in your country. I do not knowingly collect personal data from children. If you believe a child has given me personal data, please contact me and I will delete it.

15. Changes to this policy

I will update this policy when the App or the way it handles data changes, and change the “Last updated” date above. Where the law requires it, I will inform you of significant changes before they take effect.

16. Contact

For privacy questions or requests, email seelowe.dev@protonmail.com.