DZXapps
DZXapps
Last updated: 05.08.2026
DZX Apps ("we", "us", or "our") is committed to protecting your privacy. This Privacy Policy explains what information MainzIQ stores, how it is used, how it is protected, and how you can control or delete it.
| Question | Answer |
|---|---|
| Does MainzIQ sell or share data with advertisers? | No |
| Is an account required to use the app? | No — local use is fully supported |
| Where is data stored without an account? | Locally on your device only |
| Where is data stored when signed in? | Firebase Authentication and Cloud Firestore, for sync and backup |
| Which sign-in options are available? | Google and Apple |
| Are service images synced to the cloud? | Only with MainzIQ Premium |
| Can I delete my data? | Yes, at any time — including directly from account settings in the app |
| Is the app directed at children? | No |
MainzIQ stores the information you add to the app, including vehicles, service history, mileage, images and settings. If you sign in with Google or Apple, your data is securely stored in Firebase Authentication and Firebase Cloud Firestore for authentication, backup and synchronization across your devices. If you have MainzIQ Premium, service images are also securely synchronized between your devices.
Your information is used solely to provide the app's features, including vehicle management, service history, statistics, export, Premium features and synchronization. For vehicles added using automatic lookup, MainzIQ may retrieve updated information about the next roadworthiness inspection from the Norwegian Public Roads Administration once per day.
MainzIQ does not sell or share your personal information with third parties for marketing purposes. When you sign in with Google or Apple, MainzIQ uses Firebase Authentication and Firebase Cloud Firestore for authentication, cloud storage and synchronization. When automatic vehicle lookup is used, your registration number is sent to the Norwegian Public Roads Administration's public API to retrieve vehicle information.
Your data is stored either locally on your device or securely in Firebase Cloud Firestore when synchronization is enabled. If you have MainzIQ Premium, service images may also be securely stored in the cloud. All communication with our cloud services is encrypted. While we use industry-standard security measures, no system can guarantee complete security.
When you sign in with Google or Apple, your vehicles, service history, mileage and other information are securely synchronized across your devices. If you have MainzIQ Premium, service images are also securely synchronized between your devices.
You can manage or delete your data at any time:
MainzIQ is not directed at children and has no specific age restriction for general use. We do not knowingly collect personal information from children. If you believe a child has provided personal information to us, please contact us so we can delete it.
These Terms and the Privacy Policy may be updated from time to time. Continued use of MainzIQ after changes have been published constitutes acceptance of the updated terms.
If you have questions about privacy, data processing or would like your account or cloud data deleted, you can contact DZX Apps at [email protected]. You can also delete your account directly from the account settings within the app.