1DROP · KCREW

Privacy Policy

Effective date: October 18, 2026 (app version 1.1.0 and later)

1Drop processes only the minimum information needed to run the game and provide world rankings. The Android and iOS apps show ads with child-directed protections for every user: no advertising ID and no personalized ads.

1. Information we process

2. How we use information

3. Public information and service providers

Your nickname, selected country, and best score are visible to other users on ranking screens. We use Google Firebase for authentication and data storage. During first profile setup, the country is prefilled from your device region setting and you can change it; the app does not send your connection address to any outside service to choose a country. We do not sell personal information or share it for advertising, except where required by law.

4. Advertising

The Android and iOS apps may show ads from Unity Ads and ironSource Ads through Unity LevelPlay (ironSource) mediation. The web version has no ads.

5. Retention

Profiles and ranking records are retained until you delete them in the app or request deletion. Submission records used to prevent duplicate scores are normally deleted after seven days. Other minimum operational records are deleted when their purpose has been fulfilled.

6. How to delete your data

Select Delete account & data from the settings icon at the top of the app to delete your anonymous account, profile, and ranking records. If you cannot use the app, request deletion at admin@kcrew.co.kr.

7. Children's privacy

1Drop is a game that children under 13 also play. It needs no sign-up, and nicknames cannot be typed: players only pick from preset word combinations, so real names or contact details never appear on the ranking. It has no chat, external links (other than this policy), or randomized rewards. Ads are shown as described in section 4, treating every user as a child. A parent or guardian who wants a child's information deleted can contact us below, and we will verify and delete it.

8. Security

Data is encrypted in transit. Firebase security rules and server-side validation restrict direct database access and abnormal score submissions.

9. Changes and contact

We will update the effective date and this page when our processing changes. Send privacy questions to admin@kcrew.co.kr.