Privacy policy

What is stored on your device and in the cloud?

Answers, mistakes, favourites, practice and mock results for motorcycles, cars, and small or large commercial-vehicle mechanical knowledge are kept separately by account, test category, bank language and version. Signed-out records stay on the device. Removing the app or clearing device data may erase records that have not been backed up.

Daily goals and score estimates also use learning observations: question and source-version identifiers, presentation and answer times, the selected answer, uncertainty marks, and whether a hint or answer was viewed before answering. Daily totals, streaks and estimates are calculated on the device. This is separate from external usage analytics.

When you sign in and use sync, supported records that sync successfully are linked to your account. An app device ID, data versions and update times help coordinate sync; the ID is not an advertising ID. Check the displayed category, bank language, version and record type that have been backed up. Other records may still be device-only.

Importing guest records into an account requires your confirmation and a verifiable bank version. Ongoing practice and papers stay on the original device. Older learning records are not backfilled as past daily-goal achievements.

Sign-in and linked accounts

When you use a third-party sign-in method available in the app, that service verifies your identity and, with your permission, provides information such as an account identifier, display name and email address. We use this information to create or recognize your app account, display your sign-in status and protect synced records. We do not receive the password you use with that sign-in service.

In Account & sync, you can choose to link another available sign-in method to the same app learning records. You must keep at least one usable sign-in method before unlinking one. Each sign-in service also processes sign-in information under its own privacy policy.

Sign-in credentials are kept in secure storage on your device to maintain your session. After you sign out, that account’s records are kept separate from practice records created while signed out. Signing out does not delete your cloud account.

Images, videos and connection data

An internet connection is needed to view uncached images, play videos, sign in and sync. Systems providing these services process connection data such as IP addresses, request times, resource URLs, device or browser types, and error and security logs as needed to deliver content, maintain the service and prevent abuse.

We do not attach your name, email address, answers or learning backups to video or question-image URLs. Videos stream online rather than downloading the entire collection in advance. Playback may still create temporary cached data.

Purchase information

Apple handles subscriptions purchased in the app. The app verifies the subscription, its validity period and any refund or revocation status on your device to determine whether full features are available. We do not receive your credit card number or Apple Account password.

Your learning account and store purchase account serve different purposes. Deleting your app learning account or removing the app does not cancel automatic renewal or automatically request a refund. Cancel through Apple’s subscription management. You can restore an active subscription with the Apple Account used to purchase it.

Usage analytics and device permissions

External usage analytics are not enabled in this version. Practice and tap events are not sent to analytics services. The timing and frequency of rating invitations are used only to control prompts on this device. We do not receive information about whether you submitted a rating or how many stars you gave.

The app has no ads and does not use data to track advertising across apps or websites. We do not require location, contacts, camera or microphone access for practice. If we introduce new uses of data, we will first update this policy and any necessary choice or consent process.

Notifications and practice reminders

Notifications are optional. You can practice, sign in and use subscribed features without enabling them. The app requests iOS notification permission only after you choose to enable reminders. You can adjust them under Settings & support → Notifications & reminders in the app, or turn them off in iOS Settings.

Daily reminders are scheduled on this device in Taiwan time (Asia/Taipei), at most once a day. Completing 20 distinct questions cancels any unsent reminder for that day. The device stores the local scheduling identifier, date, remaining count and preferences needed for scheduling; notifications do not include names, email, answers or cloud backups. Remote bank-update push is not active, and APNs device tokens are not registered or uploaded.

Who helps provide the service?

We use Supabase for sign-in and cloud learning records. Apple and the available sign-in services you select handle purchases or identity verification. Online media is delivered through the app’s content service, whose providers may also process related connection data.

Data may be processed at service locations outside Taiwan. We restrict how data is used and accessed. We do not sell learning records or provide personal information for third-party advertising. Service providers may still process necessary data for security, backups and legal obligations.

Retention, deletion and your choices

Your cloud account and learning data are retained while you use the account to provide sync. In Me → Account & sync → Delete Account, you can confirm deletion of your app account and its cloud learning records. This does not close your Google, Apple or LINE account. Deletion cannot be undone, and we may ask you to verify your identity again when necessary.

After deletion, the active app account and its linked learning records are removed. Provider backups, security records or legally required records may follow their own retention schedules. We cannot guarantee that every backup disappears immediately when you delete the account. Offline copies on other devices and data you saved yourself are not erased remotely.

To request access, corrections, a copy of your data or deletion when you cannot sign in, contact the support email below. We first verify the requester’s identity to avoid disclosing records to someone else. Do not send passwords, verification codes, identity documents or payment card numbers.

Support and policy updates

When you email support, we process your sender address, message and any information you choose to provide to respond and resolve the issue. Please provide only what is needed. Your full learning records are not attached automatically. Related data is deleted once it is no longer needed to handle the issue, maintain necessary security or preserve records for a dispute.

This policy may be updated as the service changes. The latest update date appears at the top of this page. We will give notice in an appropriate place if there are important changes to how data is used.