Privacy Policy

Effective Date: January 1, 2025

Buy or Not ("Company") values your privacy and complies with privacy protection laws. This privacy policy explains what personal information we collect, how we use it, and how long we retain it.

1. Information We Collect

We collect the following information:

Device information: Device model, OS version, app version
Advertising identifiers (IDFA/GAID): For advertising and analytics
App usage statistics: Screen views, feature usage
Purchase consultation history: Item name, price, additional info (stored locally)

2. How We Use Your Information

To provide and improve our AI purchase consultation service
To provide personalized ads and analyze ad effectiveness
To analyze usage patterns and improve the service
To respond to inquiries and send notices

3. Third-Party Services

We use the following third-party services:

Firebase (Google): Analytics and performance monitoring
AdMob (Google): Advertising and monetization
OpenAI: AI consultation generation (data retained per OpenAI policy, max 30 days)

4. Data Retention

All local data is deleted when you uninstall the app. Analytics data is retained per Firebase policy (max 14 months).

5. Your Rights

You have the right to access, correct, delete, or restrict processing of your personal information. Contact us at contact@leekyusung.kr

Appendix. Website Cookies and Visit Analytics

Unlike the other sections, which describe the app, this section applies only to the website (the domain serving this page).

What we collect — pages visited, referral information (UTM parameters), approximate location (country and city level), device and browser type, screen size, and whether a store link was clicked. The identifier stored in cookies is a browser-level online identifier and may qualify as personal information; however, we do not collect your name, email address, phone number, or any other directly identifying information, and we do not use this identifier to single out any individual.
Why we collect it — solely to understand how visitors reach this site so that we can improve it. It is never used for advertising or profiling.
Tool and cookies — Google Analytics 4 (Google LLC), which stores cookies (_ga, _ga_*) in your browser to distinguish browsers. These cookies last for up to 2 years, and you can delete them at any time using your browser's cookie controls.
Retention — Google Analytics event data is retained for up to 14 months and then deleted automatically. Your consent choice and referral values are stored only in your own browser and are never sent to our servers.
Outsourced processing and international transfer — the statistics above are processed by a processor acting within the scope of our instructions, which constitutes an overseas transfer for outsourced processing; the following is disclosed under Article 28-8 of the Korean Personal Information Protection Act. Recipient: Google LLC (1600 Amphitheatre Parkway, Mountain View, CA, USA; contact via the Google Privacy Policy). Country of transfer: the United States. Timing and method of transfer: transmitted over the network via cookies from time to time as you use the website. Items transferred: as listed under "What we collect" above. Recipient's purpose of use: generating and analyzing visit statistics for this website, within the scope of our instructions. Recipient's retention period: as stated under "Retention" above. You may refuse this transfer as described under "How to consent, refuse, or withdraw" below, with no disadvantage whatsoever in using the website. We do not provide the data to any other third party.
How to consent, refuse, or withdraw — choose Decline on the banner shown on your first visit and Google Analytics is never loaded; the site remains fully usable. Even after accepting, you can withdraw your consent at any time via Cookie settings; when you withdraw (decline), the related cookies are deleted. As an additional option, you can also remove the cookies by clearing cookies and site data in your browser.

The referral tags (UTM) appended to store buttons do not identify you, are held only for the current browser session, and work regardless of your cookie choice.

6. Contact

Privacy Officer: Leekyusung

Email: contact@leekyusung.kr