Privacy Policy for HangulWave

Last Updated: May 8, 2026

1. Introduction

Welcome to HangulWave. We respect your privacy and are committed to protecting your personal data. This privacy policy will inform you as to how we look after your personal data when you visit our application and tell you about your privacy rights and how the law protects you.

2. Information We Collect

We may collect, use, store and transfer different kinds of personal data about you which we have grouped together as follows:

• Identity Data: includes first name, last name, username or similar identifier (via Google Sign-In or Apple Sign-In).
• Contact Data: includes email address.
• Technical Data: includes internet protocol (IP) address, your login data, device type and version, time zone setting and location, operating system and platform.
• Usage Data: includes information about how you use our application, your learning progress, and interactions within the app.

3. How We Use Your Data

We will only use your personal data when the law allows us to. Most commonly, we will use your personal data in the following circumstances:

• To provide and maintain our Service, including to monitor the usage of our Service.
• To manage Your Account: to manage Your registration as a user of the Service.
• For the performance of a contract: the development, compliance and undertaking of the purchase contract for the products, items or services You have purchased.

4. Third-Party AI Services

Our application utilizes artificial intelligence (AI) services to provide interactive learning experiences. When you interact with AI personas, your text inputs may be sent to third-party AI providers (such as OpenAI or similar services) for processing. These providers process data in accordance with their own privacy policies. We do not use your personal data to train these AI models.

5. Data Security

We have put in place appropriate security measures to prevent your personal data from being accidentally lost, used or accessed in an unauthorised way, altered or disclosed. We use Firebase services by Google which complies with stringent security standards.

6. Your Legal Rights

Under certain circumstances, you have rights under data protection laws in relation to your personal data, including the right to request access, correction, erasure, restriction, transfer, to object to processing, to portability of data and (where the lawful ground of processing is consent) to withdraw consent.

7. Account Deletion

You can delete your account and all associated data at any time from within the application's Settings menu. Upon deletion, all your personal information and learning progress will be permanently removed from our servers.

8. Contact Us

If you have any questions about this privacy policy or our privacy practices, please contact us via the app support section.