Privacy Policy

TumuBook collects the following privacy information:
- Email address and name that you provide
- Authentication identifiers, email addresses, and names obtained through external authentication services (Apple Sign-In, Google Sign-In). Names may only be provided at the initial authentication.
- Your children's names and birthdates
- Service usage data (reading records, favorite books, notes, etc.)
- Automatically collected information (IP address, cookies, browser information, etc.)

About your children's information:
- You may register your child's name using a nickname
- Birthdates are used to calculate your child's age at the time of reading
- Your children's information is managed under the parent's account; this Service is not intended for direct use by children

Notes on Apple Sign-In:
- If you use Apple's Private Email Relay, TumuBook will receive and store a relay email address in the format @privaterelay.appleid.com. Notification emails will be delivered to you through Apple's relay service.

TumuBook collects privacy information through the following methods:
- Information you enter during account registration
- Information provided to TumuBook by external authentication providers (Apple, Google) with your consent during authentication
- Information automatically collected during service use (analytics tools, cookies, etc.)

We use the collected privacy information for the following purposes:
- Service provision and operation
- User authentication and account management
- Responding to customer inquiries
- Service improvement and new feature development
- Usage analysis

We will not share your privacy information with third parties, except in the following cases:
- When required by law
- With your consent

Information exchange for authentication:
- When you use external authentication services (Apple Sign-In, Google Sign-In), authentication information is exchanged with these services during the authentication process. Please also review the privacy policies of these services:
- Apple Privacy Policy: https://www.apple.com/legal/privacy/
- Google Privacy Policy: https://policies.google.com/privacy

We currently use the following external services:
- Google Analytics (for access analysis)
- Google Sign-In (authentication)
- Apple Sign-In (authentication)

We implement appropriate security measures to prevent leakage, loss, or damage of your privacy information.

You may request access, correction, or deletion of your privacy information.
If you have such requests, please contact us through the contact information below.

For inquiries regarding this Privacy Policy, please contact us through:

This Privacy Policy may be updated as necessary.
When changes are made, we will announce them on this page.