Privacy Policy

Last updated: October 9, 2026. This policy applies to the Motorcycle Maintenance Assistant app. Developer contact: ahren@ahren.ren.

1. Information We Collect

To provide motorcycle profiles, fuel logs, maintenance items, service history, cost statistics, reminders, and cloud sync, the app stores information you actively enter, including motorcycle name, model, mileage, fuel records, maintenance records, service notes, cost information, motorcycle images, and the email address used to register and sign in to cloud sync. The content of user feedback you actively submit, a contact email address, and device information attached for troubleshooting (such as the system version and device model) are also collected, and are used only to improve the product and to handle your issue.

We do not actively collect contacts, SMS messages, call logs, precise location, microphone data, or camera data. Network status is used only to check whether the network is available and to show connection state inside the app. It is not used for profiling.

2. Local Storage and Cloud Sync

If you do not sign in to cloud sync, the data you enter is saved only on this device. Android system auto backup is disabled for this app. If you need to reinstall or switch devices, you can use the in-app local backup export/import feature, or sign in and actively upload/download through cloud sync. After you sign in, motorcycle, fuel, and maintenance data is synced through https://api.ahren.ren only when you actively choose upload or download, or when the app restores an existing signed-in session to keep the account available.

3. Third-Party Services

For account authentication, email verification, password reset, and cloud data storage, we process requests through the developer-operated domain api.ahren.ren, hosted on Alibaba Cloud with a PostgreSQL database. Fuel photo recognition runs locally on this device with ML Kit and does not send fuel photos to the cloud. Returned results are candidates and are only filled into the form after your confirmation. The app does not directly transfer your motorcycle records to advertising platforms or data marketing platforms.

4. Permissions

The app declares the network permission (INTERNET), the network state permission (ACCESS_NETWORK_STATE), and the notification permission (POST_NOTIFICATIONS, on Android 13 and later only). The network permission is used for sign-in, email verification, password reset, cloud sync, and user feedback. The network state permission is used to check whether the current network is available and show connection status. The notification permission is used only for local reminders when maintenance items are due soon or overdue. These reminders are calculated from records on your device and do not upload additional data. The app does not request camera permission—photo capture is delegated to the system camera app. The app only reads an image after you have authorized the system camera and actively taken a photo or chosen one from the gallery. On-device recognized results are not saved as fuel records before your confirmation. The app does not request contacts, SMS, call history, precise location, or microphone permissions.

5. First Launch and Consent

On first launch, the app shows a privacy notice with links to this Privacy Policy and the User Agreement. Before you agree, the app will not actively restore a cloud sync login session, upload data, or download data.

6. Purpose of Use

We use the information above only to display motorcycle profiles, fuel trends, maintenance history, maintenance intervals, cost statistics, cloud backup and restore, account verification, and necessary service security maintenance. We do not use your data for advertising profiling or purposes unrelated to these features.

7. Data Deletion and Account Handling

You can delete motorcycles, fuel records, and maintenance records inside the app.

7.1 Information storage period

We keep your information only for the period necessary to fulfill the purposes described in this policy. Local data you enter is stored on your device and is cleared when the app is uninstalled. If you have signed in to cloud sync and uploaded data, cloud data is kept until you delete your account; after the account is deleted, we delete your cloud account and synced cloud data. After the account is deleted, the contact email and device information are removed from feedback you submitted earlier, and the text of the feedback is kept anonymously to improve the product. Please note that uninstalling the app alone does not delete cloud data that has already been uploaded. To delete it, delete your account first. Backup files exported to shared storage through the in-app "local backup export" feature are not cleared automatically when the app is uninstalled; you keep and delete them yourself.

The following feedback is not linked to an account, so deleting your account cannot automatically remove the contact email and device information in it: feedback submitted while you are not signed in; feedback submitted before October 9, 2026; and feedback submitted through an older version of the app that does not yet support this feature. To have it deleted, please request deletion through the developer contact.

7.2 Withdrawing consent

You may withdraw authorization for the corresponding information processing at any time. Withdrawal does not affect processing already carried out, before the withdrawal, on the basis of your consent: (1) Turning off notification permission: you may turn off this app's notification permission in system settings, which is treated as withdrawing notification authorization. After that, the app no longer sends due reminders, and records on your device are not affected. (2) Deleting your account: you may delete the cloud account on the cloud sync page, which is treated as withdrawing authorization related to cloud sync. We will delete the cloud account and synced cloud data as described in section 7.1, and records on your device are not affected. You may also, as described earlier in section 7, contact the developer to request access, correction, or deletion of your data.

8. Data Security

Cloud sync requests are transmitted over HTTPS. We make reasonable efforts to protect data security, but internet services cannot be guaranteed to be absolutely secure. Please keep your account credentials safe and avoid staying signed in on untrusted devices.

9. Minors

This app is intended for users who need motorcycle usage and maintenance records. Minors should obtain guardian consent before using it.

10. Policy Updates

If important changes occur to features, permissions, or data processing practices, we will update this policy and display the new version in the app or on the web.

11. Contact Us

If you have questions about this policy or personal information processing, contact ahren@ahren.ren.