Privacy Policy

1. Personal Information Collected

Aion2do collects only the minimum information necessary to provide the service.

• Email login: Email address, password (encrypted and stored via Firebase Auth)
• Google login: Google account email, display name
• Service usage data: Task progress, character info, memos, alert settings

2. Purpose of Use

• User identification and login functionality
• Cross-device data synchronization

3. Data Storage and Protection

• All data is encrypted and stored on Google Firebase servers.
• Passwords are processed with one-way hashing by Firebase Authentication and cannot be viewed by anyone, including the operator.
• Data for non-logged-in users is stored only in the browser's local storage (localStorage) and is not transmitted to any server.

4. Third-Party Sharing

Collected personal information is not shared with third parties, except for advertising as described in Section 6. However, Google's privacy policy applies when using Google login.

5. Data Deletion

If you wish to delete your account, please contact the creator. Local data can be deleted directly from your browser settings.

6. Cookies and Advertising

This site uses third-party advertising services (Google AdSense, Kakao AdFit) to serve ads.

• Third-party vendors, including Google, use cookies to serve personalized ads based on your prior visits to this and other websites.
• Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and/or other sites on the Internet.
• You may opt out of personalized advertising by visiting Google Ads Settings (adssettings.google.com), and opt out of other third-party vendors' cookies at www.aboutads.info.
• If you prefer not to store cookies at all, you can block them in your browser settings.

Last updated: July 7, 2026