Privacy Policy

Last Updated: February 2026

1. Introduction

JLCT Learn Japanese (the "App") is an online Japanese learning platform operated by Treasure Planning LLC ("we", "our", "us"). This Privacy Policy explains how we collect, use, and protect your personal information.

2. Information We Collect

2.1 Account Information

• Name (display name)
• Email address
• Profile photo
• Authentication data (via Firebase Authentication)

2.2 Payment Information

• Payment processing information through Stripe
• Purchase history and lesson payment records
• Note: Credit card information is NOT stored on our servers. Payment processing is handled securely by Stripe.

2.3 Service Usage Information

• Lesson bookings and history
• Chat history (messages between teachers and students)
• Learning progress data
• Mock exam results

2.4 Device and Technical Information

• Device type and OS version
• FCM tokens (for push notifications)
• Timezone settings
• App usage analytics (via Firebase Analytics)

3. How We Use Your Information

We use the collected information for the following purposes:

• Service Delivery: Processing lesson bookings, video calls, and payments
• Notifications: Lesson reminders, message notifications, and important announcements
• Service Improvement: Enhancing user experience, bug fixes, and new feature development
• Customer Support: Responding to your inquiries
• Fraud Prevention: Detecting and preventing fraudulent activities

4. Third-Party Service Providers

We may share information with the following service providers:

4.1 Stripe (Payment Processing)

We provide necessary information to Stripe for processing lesson payments.
Stripe Privacy Policy

4.2 Agora (Video Calls)

We use Agora's services to provide video lessons.
Agora Privacy Policy

4.3 Firebase (Authentication, Notifications, Data Storage)

We use Firebase for user authentication, push notifications, and data storage.
Firebase Privacy

4.4 Wise (Teacher Payments)

We may use Wise for paying teachers located overseas.
Wise Privacy Policy

5. Data Retention

• Account Information: Retained for 30 days after account deletion
• Payment Records: Retained for 7 years as required by law
• Chat History: Retained until account deletion
• Learning Data: Retained until account deletion

6. Your Rights

You have the following rights regarding your personal information:

• Right of Access: Request access to your personal information
• Right to Rectification: Request correction of inaccurate information
• Right to Erasure: Request deletion of your account and related data
• Right to Data Portability: Request a copy of your data

To exercise these rights, please contact us at support@jlct-thai.jp

7. Cookies and Tracking

The App may use cookies for web-based content. We collect anonymous usage data through Firebase Analytics. You can limit tracking through your device settings.

8. Protection of Minors

Users under 18 years of age must obtain parental consent before using this service. The App includes a "Minor Mode" that limits data collection when enabled.

9. Data Security

We implement the following security measures to protect your data:

• SSL/TLS encrypted communications
• Access controls and access log management
• Regular security audits

10. Policy Changes

This Privacy Policy may be updated due to legal changes or service updates. We will notify you of significant changes through in-app notifications or email.

11. Contact Us

For questions or requests regarding privacy, please contact us: