Zero One Studio
← Hangul Baseball

Hangul Baseball Privacy Policy

Effective date: August 26, 2026

1. Overview

Hangul Baseball (the "App") is provided by Zero One Studio. This policy explains what information the App handles and how.

2. Information we collect

  • Advertising identifiers — To serve ads and manage their frequency, advertising identifiers (IDFA / Ad ID) and coarse device information may be shared with ad providers. Apps that request iOS App Tracking Transparency use the identifier for ad personalization only if you allow it; apps that do not request it show non-personalized ads only.
  • Account identifiers — We store an account identifier needed to provide the service. If you use social sign-in, we receive an identifier and email address from that provider.
  • User-entered content — Content you enter in the app (lists, records, nicknames, etc.) is stored to provide app features.
  • Purchase history — We check purchase history to process payments and restore purchases. Payment details such as card numbers are handled by the App Store / Google Play and are never stored by the studio.
  • Device info · push tokens — We store your device model and push token to deliver push notifications and refresh widgets.
  • Crash logs · usage statistics — When the app crashes or errors occur, crash logs and device/app version information are collected to diagnose the cause. Anonymous statistics about screen usage are also aggregated; none of this is used to identify individual users.
If you sign in, the nickname you choose and your game progress (stars, clears and stats) are saved to the cloud so they carry over to a new device. Your nickname is shown to other players on the leaderboard.

3. How we use it

Collected information is used only to provide app features, diagnose errors, and serve ads. We do not profile users for identification and never sell data to third parties.

4. Third-party services

The App uses the services below; each service's own privacy policy also applies.

  • Google AdMob
  • Supabase
  • Google Sign-In
  • Toss sign-in
  • App Store / Google Play billing
  • Firebase (Analytics · Crashlytics · Cloud Messaging)

About ads

The App shows ads through Google AdMob. Ad providers may use advertising identifiers to show relevant ads. On iOS, the advertising identifier is used only if you allow the tracking permission the App requests; declining does not limit your use of the App.

You can turn off ad personalization or reset your advertising identifier in your device settings. Google's ad policies are available at policies.google.com/technologies/ads.

Retention and deletion

Data stored on your device is deleted when you delete the App. To request deletion of data stored on our servers, contact us at the email below.

Children's privacy

The App is not directed at children under 14 and does not knowingly collect personal information from children.

Contact

Questions about this policy: contact@zeroonestudio.app

Changes

Any changes to this policy will be announced on this page.