Privacy Policy

The Company processes personal information for the following purposes:

1. Account registration and identity verification
2. Login and account management
3. Providing Korean-language learning content
4. Audio submission processing and instructor feedback
5. Tracking learning progress and managing assignments
6. Payment processing
7. Customer support and inquiries
8. Service improvement and statistical analysis
9. Marketing and event notifications (only with separate consent)

At sign-up

• Name or nickname
• Email address
• Password

Through social login

• Account information from Google or Apple (name, email address)

At payment

• Payment information (sensitive payment data such as card numbers is handled directly by the payment processor)

During Service use

• Learning progress
• Assignment submissions
• Voice recording files
• Instructor feedback results

Automatically collected

• IP address
• Cookies
• Browser information
• Device information
• Access logs
• Push notification tokens
• App usage analytics (launches, screen views, error logs, performance data)

Device permissions

• Microphone: used to record audio assignments for instructor review
• Camera (optional): may be used for profile photo upload or photo attachment features
• Notifications: used to deliver learning reminders, assignment feedback, and service announcements

The Company retains personal information until the purpose of collection has been achieved:

1. Member information: until account deletion
2. Payment records: 5 years (as required by applicable law)
3. Contracts and withdrawal records: 5 years
4. Consumer complaint and dispute records: 3 years

Where retention is required by law, data is securely stored for the required period.

To operate the Service, the Company may entrust the processing of personal information to the following external providers:

• Amazon Web Services (AWS) — application hosting (ECS, Fargate), database (RDS PostgreSQL), file storage (S3), content delivery (CloudFront), DNS (Route 53), email delivery (SES), and secrets management (Secrets Manager)
• PayPal — payment processing on the web
• Google LLC — "Sign in with Google" authentication
• Apple Inc. — "Sign in with Apple" authentication and push notification delivery via APNs
• Zoho Corporation — email hosting for the Company's support and contact addresses
• Expo / Vercel — mobile build distribution and preview hosting for development

The Company manages and supervises these providers to ensure they handle personal information securely.

As part of providing the Service, personal information may be processed via overseas servers or international service providers.

• Destination countries: United States, Japan, and other countries where the providers listed in Section 4 operate
• Items transferred: email address, learning data, audio files
• Purpose: authentication, payment processing, content delivery, and data storage
• Retention period: until the processing purpose has been achieved

You may exercise the following rights at any time:

1. Access your personal information
2. Correct your personal information
3. Delete your personal information
4. Request restriction of processing
5. Withdraw your membership

To exercise these rights, contact our support team or the privacy officer using the contact information below. To request deletion of your account and personal data, see our Account Deletion page.

The Company uses cookies for the following purposes:

1. Maintaining login sessions
2. Analyzing Service usage
3. Improving user experience

You may disable cookies through your browser settings.

The Company complies with applicable laws to protect the personal information of children under the age of 14. Where required, we will obtain consent from a legal guardian.

The Company implements the following measures to protect personal information:

1. Encryption of personal information
2. Access control and least-privilege permissions
3. Operation of security systems and monitoring
4. Regular security reviews

For privacy-related inquiries, please contact:

• Service name: Korean Slang Club
• Email: king6544da@gmail.com

The Company may update this Privacy Policy in response to changes in applicable law or the Service. Changes will be announced through in-Service notices or by email.

This Privacy Policy is effective as of May 11, 2026.