Privacy Policies and App Support
Last Updated: March 29, 2026
Zerron Labs (“we,” “our,” or “us”) operates the Mandarin Hub mobile application (the “Service”). This page informs you of our policies regarding the collection, use, and disclosure of personal data when you use our Service and the choices you have associated with that data.
We collect several different types of information for various purposes to provide and improve our Service to you.
While using our Service, we may ask you to provide us with certain personally identifiable information that can be used to contact or identify you (“Personal Data”). Personally identifiable information may include, but is not limited to:
We may also collect information that your browser or mobile device sends whenever you visit our Service or when you access the Service by or through a mobile device (“Usage Data”).
This Usage Data may include information such as your device’s Internet Protocol address (e.g. IP address), device type, device ID, the pages of our Service that you visit, the time and date of your visit, the time spent on those pages, unique device identifiers, and other diagnostic data.
Mandarin Hub stores your reading progress, favorited words, and custom vocabulary lists locally on your device using a secure database. This data remains on your device unless you choose to delete the application or clear the application’s storage.
Mandarin Hub uses the collected data for various purposes:
We may employ third-party companies and individuals to facilitate our Service (“Service Providers”), to provide the Service on our behalf, to perform Service-related services, or to assist us in analyzing how our Service is used.
These third parties have access to your Personal Data only to perform these tasks on our behalf and are obligated not to disclose or use it for any other purpose.
We use third-party Service Providers to monitor and analyze the use of our Service.
The security of your data is important to us, but remember that no method of transmission over the Internet, or method of electronic storage, is 100% secure. While we strive to use commercially acceptable means to protect your Personal Data, we cannot guarantee its absolute security.
Under Google Play and App Store requirements, users have the right to request the deletion of their data.
Our Service does not address anyone under the age of 13 (“Children”). We do not knowingly collect personally identifiable information from anyone under the age of 13. If you are a parent or guardian and you are aware that your Children have provided us with Personal Data, please contact us.
We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the “Last Updated” date at the top of this Privacy Policy.
If you have any questions about this Privacy Policy, please contact us: