Just3days is a theme for GitHub Pages.
Effective Date: July 31, 2026
Just3days (the “Service”) complies with applicable laws and regulations, including the Personal Information Protection Act of the Republic of Korea, and is committed to protecting users’ personal information.
This Privacy Policy explains the categories of personal information processed in connection with the Service, the purposes of processing, retention periods, and users’ rights.
| Category | Information Collected | Purpose of Use | Retention Period |
|---|---|---|---|
| Sign in with Apple | Apple user identifier and email address, including a public email address or a Hide My Email relay address | User identification and sign-in | Until account deletion |
| Google Sign-In | Google account identifier, email address, name, and profile image URL when provided | User identification and sign-in | Until account deletion |
| Firebase Authentication | Firebase UID | User identification and authentication management | Until account deletion |
| Firebase Firestore | Schedules, habits, settings, completion records, and ad-removal purchase status | Providing the Service and synchronizing data across devices | Until account deletion |
| Device and app information | OS version, app version, and similar technical information | Error analysis, service stability, and quality improvement | Deleted without undue delay after the purpose is fulfilled |
The Service does not collect unnecessary personal information such as resident registration numbers, postal addresses, telephone numbers, or dates of birth.
The Service processes personal information for the following purposes:
The Service may display advertisements through Google AdMob.
Before requesting ads, the Service uses Google’s User Messaging Platform to obtain consent where required and provide privacy options. This version does not request App Tracking Transparency (ATT) permission, so IDFA is not used for cross-app tracking. Depending on consent and device settings, non-personalized or limited ads may be displayed.
The ad-removal product is offered through Apple App Store in-app purchases. Apple processes payment methods and payment information directly. The Service does not directly collect or store payment-card numbers or other payment-method details.
The Service does not sell users’ personal information and does not disclose personal information to third parties except where required or permitted by law or with the user’s consent.
The following external services are used to provide the Service:
| Provider | Service Used | Purpose |
|---|---|---|
| Google LLC | Google Sign-In, Firebase Authentication, and Cloud Firestore | User authentication, data storage, and synchronization |
| Google LLC | Google AdMob | Advertisement delivery and advertising performance measurement |
| Apple Inc. | Sign in with Apple and App Store in-app purchases | Sign-in processing, payment processing, and purchase restoration |
During use of the Service, personal information may be processed on cloud servers located outside the user’s country.
| Recipient | Destination | Information Transferred | Purpose | Timing and Method | Retention Period |
|---|---|---|---|---|---|
| Google LLC | United States and other countries where Google operates its services | Google account identifier and profile information, Firebase UID, schedules, habits, settings, and completion records | User authentication, data storage, and synchronization | Transmitted through encrypted networks when the Service is used | Until account deletion or fulfillment of the processing purpose |
| Google LLC | United States and other countries where Google operates its services | Device and advertising identifiers and advertisement usage information | Advertisement delivery and performance measurement | Transmitted through encrypted networks when an advertisement is requested | In accordance with Google’s policies and applicable law |
| Apple Inc. | United States and other countries where Apple operates its services | Apple user identifier and purchase or transaction identifiers | Sign-in, payment processing, and purchase restoration | Transmitted through encrypted networks when sign-in or payment features are used | In accordance with Apple’s policies and applicable law |
International transfers are limited to what is necessary to provide the Service, and encrypted communications are used during transmission.
When account deletion is completed, the Service deletes the user’s Firebase Authentication account and personal information stored in Firestore without undue delay.
Personal information stored in electronic files is deleted in a manner intended to prevent recovery or restoration.
Where applicable law requires certain information to be retained for a specified period, that information will be stored separately for the legally required period and deleted afterward.
Users may exercise the following rights at any time:
Users may delete their accounts through the account-deletion feature provided in the app. If the request cannot be completed directly in the app, users may contact the Service using the contact information below.
Users who use Apple’s Hide My Email feature may manage email forwarding settings through their Apple Account.
The Service implements the following measures to protect personal information:
Questions, complaints, and requests to access or delete personal information may be submitted through the contact information below.
This Privacy Policy may be amended to reflect changes in applicable law, Service features, or personal information processing practices.
Material changes will be announced before they take effect through an in-app notice, Service screen, or another appropriate method.
This Privacy Policy takes effect on July 31, 2026.