Legal documents for the Jaksam music lesson app
Effective Date: February 12, 2026 Last Updated: March 5, 2026
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.
| 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 |
If you use Kakao or Apple login, we receive the following from the respective service:
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.
| 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) |
| 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.
We use collected information for the following purposes:
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 |
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.
You have the following rights regarding your personal information:
To request account deletion, go to Settings > Edit Profile > Delete Account in the App, or contact us at the address below.
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.
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.
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.