Last updated: 2026-11-06 (Asia/Shanghai)
These are offline-first study tools. They show publicly sourced exam-style questions, optional explanations we wrote, practice and mock exams, and progress kept on the device.
We do not create user accounts. We do not ask for your name, email, phone number, or payment details inside the app.
On-device only (stays on your phone unless you back up the device yourself):
We do not intentionally collect:
If you buy the app or an unlock, Apple App Store or Google Play process the payment. We do not receive your full payment card number. Their privacy policies apply to checkout.
Default build: no third-party analytics, ads, or social SDKs.
If a future version adds crash reporting or a receipt helper (for example RevenueCat), this policy will be updated before that version ships, and store privacy labels will match.
The apps do not need special device permissions for core study features. If a later version needs a permission, the store listing and this page will say why.
The apps are not directed at children under 13 (or the minimum age in your country). We do not knowingly collect children’s personal data.
Some apps cover legally regulated exam topics (for example firearm-permit theory). They are educational only, not affiliated with any government or association, and do not sell weapons or ammunition.
Progress lives on your device. Uninstalling the app removes it, subject to your device backup settings. We do not run a server-side profile to delete.
We do not operate an account backend. Any personal data you email to support is handled only to reply to that request.
Depending on your location you may have rights to access, correct, delete, or restrict processing of personal data you sent us (for example in a support email). Contact gyl@aqbiotech.cn. You may also complain to your local data-protection authority.
We will update this page when the practice changes. The "Last updated" date will change. Material changes will also be noted in the app "About" screen when practical.
Questions: gyl@aqbiotech.cn