How we collect, use and protect your personal information
Last updated: September 2026
Global Mandarin ('we', 'us') understands how important your personal information is and is committed to protecting it. This policy explains how we collect, use, store, share and protect personal information generated when you use the Global Mandarin mobile app and official website (www.global-mandarin.com).
Please read this policy carefully before using the service. By starting to use Global Mandarin, you accept the information practices described in this policy.
Account information: the email address and username you provide when registering or signing in. Passwords are stored only in irreversible hashed form — we cannot view your plain-text password.
Learning data: training records, pronunciation assessment results, learning progress, favorites and preferences, used for progress sync, training recommendations and learning reports.
Device and log information: device model, operating system version, IP address, operation logs and crash logs, used for security risk control, troubleshooting and service improvement.
Payment information: Premium payments are processed by licensed payment providers such as Stripe. We do not store your card number, CVV or other payment credentials.
Providing and maintaining the service: account sign-in, cross-device learning progress sync, smart training recommendations and learning reports.
Keeping the platform safe: detecting abnormal sign-ins, preventing scraping and abuse, and protecting the legitimate rights of you and the platform.
Processing transactions and support: completing payments, pro-rata refunds and order inquiries, and responding to your questions, complaints and feedback.
Improving the service: analyzing anonymized, aggregated statistics to improve features and content quality, and sending you necessary service-related notices.
We do not sell your personal information, and we do not provide it to third parties for advertising purposes.
We share information only within the necessary scope with service providers acting on our behalf, such as payment processing (Stripe) and cloud storage/content delivery providers. They are required to keep the information confidential and are subject to our oversight.
Legal requirements: we may disclose information in accordance with laws and regulations, mandatory requests from judicial or administrative authorities, or where necessary to protect the legitimate rights of users, the public and ourselves.
Social features: when you use features such as the language exchange lobby, the audio and text you post will be visible to other users within that feature. Please post thoughtfully.
Transmission and storage: data is transmitted over HTTPS encryption; passwords are stored using irreversible hashing; training resources are managed with private storage and signed access to prevent unauthorized scraping.
Access control: we apply least-privilege access, audit logging and security hardening, and regularly review our security strategy. However, please understand that no internet environment is absolutely secure.
Retention: we retain personal information only as long as necessary for the purposes described in this policy. After you delete your account, we will delete or anonymize the related information, unless laws or regulations require otherwise (for example, retention of transaction records).
Access and correction: you can view and update your account profile and privacy settings in the app at any time.
Deletion and account closure: you can request account closure in Settings. After closure, your learning data will be deleted or anonymized and cannot be recovered.
Withdrawing consent and complaints: you can withdraw consent, raise a complaint or request a copy of your personal information through the contact details at the end of this policy. We will respond within 15 business days.
Reporting and handling: if you encounter objectionable content or harassment in social features such as community, chat or language exchange, you can report it via the "Report" option next to the content or by emailing support@global-mandarin.com. We begin processing within 24 hours of receiving a report and complete our review and action within 7 business days; if you disagree with the outcome, you may contact us to appeal.
This service is intended for users with the relevant legal capacity. Minors should use the service with the consent and guidance of a guardian, who is responsible for their use.
If we discover that we have collected a minor's personal information without prior guardian consent, we will delete the relevant data as soon as possible.
Policy updates: we may revise this policy from time to time. Material changes will be announced via in-app notice or website announcement. Continuing to use the service means you accept the updated policy.
Contact us: if you have any questions, comments or complaints about this policy or personal information protection, please contact us at support@global-mandarin.com.
