작샘 (Jaksam)

Legal documents for the Jaksam music lesson app

View the Project on GitHub GabeShin/jaksam-legal

Jaksam Privacy Policy

Effective Date: February 12, 2026 Last Updated: March 5, 2026


1. Introduction

Jaksam (“the App”) is a music lesson recording and practice management service for music students, teachers, and parents. This Privacy Policy describes the personal information the App collects, uses, stores, and shares.

By using the App, you agree to the practices described in this policy.


The App uses artificial intelligence (AI) technology to provide its core features. When you first use the App, you will be asked for explicit consent to AI data processing. The service cannot be used without this consent.

Data involved in AI processing includes:

This data is processed through OpenAI’s API, located in the United States. Per OpenAI’s API terms of service, data submitted via the API is not used for model training.

You may withdraw your consent at any time through the App’s settings. Withdrawing consent will disable AI features.


3. Information We Collect

3.1 Account Information

Data Required Purpose
Email address Yes Account creation, login, password reset
Password Yes Authentication (stored encrypted)
Display name Yes Profile display within the App
Role (student/teacher/parent) Yes Role-based feature access

3.2 Social Login

If you use Kakao or Apple login, we receive the following from the respective service:

3.3 Student Profile Information

Students may optionally provide the following during onboarding or in settings:

Data Purpose
Date of birth Age-appropriate AI coaching
Instrument type Instrument-specific practice plan generation
Years of playing experience Level-appropriate feedback
Daily/weekly practice goals Practice progress tracking and reminders
Preferred practice time Notification timing optimization

This information is used by the AI to generate personalized feedback and practice plans appropriate for the student’s level.

3.4 User-Generated Content

Data Description
Lesson recordings (audio/video) Music lessons recorded by the student
Practice recordings (audio/video) Practice sessions recorded by the student
Profile photo Optional profile image upload
Practice data Practice duration, frequency, feedback responses
Learning goals Student-set practice goals and deadlines
Feedback responses Student responses to post-practice and check-in questions
AI coach conversations Chat messages with the AI coach (Jaksam)

3.5 Automatically Collected Information

Data Purpose
Device push token Sending push notifications
Error and crash data App stability improvement (collected via Sentry)
App performance data Service quality improvement

Error reports may include device type, OS version, app version, and screen context at the time of the error. Recording content and personal messages are never included in error reports.


4. How We Use Your Information

We use collected information for the following purposes:

  1. Service delivery: Account management, lesson/practice recording and playback, practice tracking
  2. AI transcription: Converting recorded audio/video to text (OpenAI Whisper API)
  3. AI summary and plan generation: Lesson summaries, practice plans, and feedback question generation (OpenAI GPT API)
  4. AI coaching: Personalized practice advice, daily practice plans, and weekly check-in messages (OpenAI GPT API)
  5. Notifications: Push notifications for lesson processing, practice reminders, and AI coaching messages
  6. Error monitoring: Detecting app crashes and errors, improving service reliability
  7. Teacher/parent linking: Connecting teachers and parents to students via invite codes for data sharing

5. Third-Party Services and Data Sharing

The App uses the following third-party services:

Service Provider Purpose Data Shared
Supabase (US) Authentication, database, file storage Account info, recordings, all service data
OpenAI (US) Audio transcription (Whisper API), summary/plan/coaching generation (GPT API) Recording audio, transcribed text, student profile, feedback responses, AI coach conversations
Sentry (US) Error and performance monitoring Error info, device info, user ID and role
Kakao (South Korea) Social login (optional) Authentication tokens
Apple (US) Apple Sign In (optional) Authentication tokens
Expo (US) Push notifications Device push tokens

About OpenAI Data Processing

The following data is sent to OpenAI’s API:

Per OpenAI’s API terms of service, data submitted via the API is not used for model training.

We do not sell your personal information to third parties.


6. Data Storage and Security

6.1 Retention

6.2 Security Measures


7. Your Rights

You have the following rights regarding your personal information:

  1. Access: View your personal information in the App’s settings.
  2. Correction: Update your name, profile photo, and other profile information.
  3. Deletion of recordings: Delete individual lesson and practice recordings.
  4. Account deletion: Request account deletion through the App’s settings. A 30-day grace period applies after the request. If you log in during the grace period, the deletion is canceled. After the grace period, all personal information and recording data are permanently deleted.
  5. Unlink: Disconnect from linked teachers or parents at any time.
  6. Withdraw AI consent: Withdraw your consent to AI data processing at any time.

To request account deletion, go to Settings > Edit Profile > Delete Account in the App, or contact us at the address below.


8. Teacher and Parent Data Access


9. Children’s Privacy

The App does not intentionally collect personal information from children under 14 years of age. Users under 14 require parental consent to use the App. If we learn that personal information from a child under 14 has been collected without consent, we will promptly delete that information.


10. Changes to This Policy

If this policy is updated, we will notify you via in-app notice or email. For significant changes, we will provide at least 7 days’ advance notice.


11. Contact Us

For questions about this Privacy Policy or your personal data, please contact us:


This Privacy Policy complies with South Korea’s Personal Information Protection Act (PIPA) and the requirements of the Apple App Store and Google Play Store.