Privacy Policy

Learndarin - Mandarin Learning App

Last updated: January 25, 2026

Introduction

Zithera Technology ("we", "our", or "us") operates the Learndarin mobile application (the "App"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our App. Please read this Privacy Policy carefully. By using the App, you agree to the collection and use of information in accordance with this policy.

Information We Collect

Personal Information

We may collect the following personal information:

  • Email address (if you create an account)
  • Display name or username
  • Profile picture (optional)
  • Learning preferences and settings
Usage Data

We automatically collect certain information when you use the App:

  • Learning progress and statistics
  • Lessons completed and scores
  • Time spent in the App
  • Device information (device type, operating system)
  • App crash reports and performance data
Voice Data

If you use voice features (speech-to-text for pronunciation practice), audio is processed on your device or through Apple/Google's speech recognition services. We do not store voice recordings.

How We Use Your Information

We use the information we collect to:

  • Provide and maintain the App
  • Track your learning progress and personalize your experience
  • Send you notifications about your learning streak and achievements
  • Improve and optimize the App
  • Respond to your inquiries and support requests
  • Send promotional communications (with your consent)
  • Comply with legal obligations

Data Storage and Security

Your learning progress is primarily stored locally on your device. If you create an account, your data may be synced to our secure servers to enable cross-device access.

We implement appropriate technical and organizational security measures to protect your personal information. However, no method of transmission over the Internet or electronic storage is 100% secure.

Third-Party Services

Our App may use the following third-party services:

Google AdMob - For displaying advertisements (free version only). Google Privacy Policy

Apple App Store / Google Play Store - For in-app purchases and subscriptions.

Firebase Analytics - For app analytics and crash reporting. Firebase Privacy Policy

Children's Privacy

Our App is suitable for users of all ages. We do not knowingly collect personal information from children under 13 without parental consent. If you are a parent or guardian and believe your child has provided us with personal information, please contact us.

Your Rights

You have the right to:

  • Access the personal information we hold about you
  • Request correction of inaccurate information
  • Request deletion of your personal information
  • Opt-out of marketing communications
  • Export your learning data

To exercise these rights, please contact us at privacy@zithera.com.au

Data Retention

We retain your personal information for as long as your account is active or as needed to provide you services. If you delete your account, we will delete your personal information within 30 days, except where we are required to retain it for legal purposes.

Changes to This Policy

We may update this 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.

Contact Us

If you have any questions about this Privacy Policy, please contact us:

Email: privacy@zithera.com.au

Website: www.zithera.com.au

Company: Zithera Technology Pty Ltd, Sydney, Australia