Privacy Policy

Effective Date: December 31, 2025

Wannapp (hereinafter “the App”) is provided by Shun Sato (hereinafter “the Operator”). The Operator establishes this Privacy Policy (hereinafter “this Policy”) regarding the handling of user information in the App.

1. Information We Collect

The Operator collects the following information in order to provide the App.

(1) Account and Authentication Information

Information provided through Sign in with Apple (e.g., Apple user identifier, display name (if provided))
Email address (if required for email login)
Information for authentication and security (e.g., authentication tokens)

* When using Sign in with Apple, the email address may not be provided or may be anonymized (e.g., via Apple's email relay service).

(2) User-Generated Content

Posted content (text)
Profile images (image files selected and uploaded by the user from their device, along with associated metadata)

* The App does not provide any image upload functionality other than profile images.

(3) Usage and Technical Information (Analytics Events/Logs)

For usage analysis and quality improvement, the App may collect and send the following information to the server at app launch and during foreground/background transitions (app_open, app_foreground, app_background).

user_id: Logged-in user ID
event_type: Event type (e.g., app_open, app_foreground, app_background)
device_info: Device information including OS, OS version, device name, brand, model name, device type (physical device/emulator, etc.)
app_version: App version
session_id: Session identifier
created_at: Event timestamp
Access logs such as IP addresses (may be automatically recorded by the cloud infrastructure)

2. Purpose of Use

The collected information is used for the following purposes.

Providing the App, identity verification, authentication, and account management
Providing features such as profile display (including profile images)
Preventing unauthorized use and ensuring security
Improving the quality of the App, troubleshooting, and analyzing usage (e.g., calculating DAU/MAU, session counts, usage time periods, device distribution, retention, etc.)
Responding to inquiries and communicating important notices
Legal compliance and dispute resolution

3. Disclosure to Third Parties

The Operator will not provide personal data to third parties without the user's consent, except as required by law.

4. Use of External Services (Outsourcing)

The Operator may use the following external services to the extent necessary for providing the App. These service providers may handle user information within the scope necessary for their service provision.

Supabase (authentication, database, storage (including profile image storage), etc.)
Apple (Sign in with Apple, App Store distribution, etc.)
Relevant providers involved in email login (if applicable)

5. Advertising and Tracking

The App does not perform tracking for advertising purposes (e.g., tracking using advertising IDs).

* If advertising or tracking is introduced in the future, this Policy will be revised and consent will be obtained as necessary.

6. Retention Period

The Operator retains information only for the period necessary to achieve the purposes of use, and will delete or anonymize it by reasonable means when it is no longer needed.

(Analytics events/logs are retained for a maximum of one year as a general rule and are periodically deleted. Upon account deletion, logs associated with the user will be promptly deleted as a general rule.)

7. Account Deletion and Data Deletion

When a user deletes their account through the method prescribed in the App, the Operator will, as a general rule, permanently delete (hard delete) the information associated with that account (including posted content, profile information (including profile images), analytics events/logs, etc.).

However, data may remain for a certain period in backups created for system security and disaster recovery purposes (even in such cases, it will be deleted by reasonable means once no longer needed).

8. Security Measures

The Operator implements reasonable security measures, including access controls, to prevent leakage, loss, and damage of collected information.

9. User Rights (Disclosure, Correction, Deletion, etc.)

Users may request disclosure, correction, deletion, or suspension of use of their information. Please contact us at the inquiry address listed in Section 11.

10. Changes to This Policy

The Operator may change this Policy as necessary. In the event of significant changes, notice will be provided within the App or by other means deemed appropriate by the Operator.

11. Contact

Operator: Shun Sato

Email: shunsatobiz@gmail.com