1. Information We Collect
Brunch9 ("Company") collects only the minimum information necessary to operate the "Maeum Hanjul" app ("App").
The App does not require sign-up or login and does not collect directly identifiable information such as name, phone number, or email address.
| Item | Purpose | Retention |
|---|---|---|
| Install ID (anonymous, randomly generated string) | Prevent repeat exposure of cards already seen | Until the App is uninstalled |
| FCM token (when push notifications are enabled) | Send daily card push notifications | Until notifications are disabled or the App is uninstalled |
| Notification time, time zone, language preference | Deliver notifications at the User's chosen time | Until notifications are disabled or the App is uninstalled |
| Liked / bookmarked card IDs | Provide the saved-cards feature (stored on-device) | Until the App is uninstalled (on-device) |
| App usage events (Firebase Analytics, anonymous, aggregate) | Service improvement and statistical analysis | 14 months from collection |
| Advertising ID (Google AAID) | AdMob ad delivery and invalid-traffic prevention | Until the User resets it in device settings |
2. How We Collect Information
- An anonymous install ID generated automatically on first launch.
- Firebase Cloud Messaging device token issued when the User opts in to push notifications.
- Anonymous usage data automatically collected via Firebase Analytics and AdMob.
- Direct actions such as liking/bookmarking — stored only on the device.
3. How We Use Information
- Recommend daily cards and avoid repeated exposure
- Send push notifications at the User's chosen time
- Provide the saved-cards (likes / bookmarks) feature
- Maintain stability and improve quality through anonymous usage analysis
- Serve ads and prevent invalid traffic via AdMob
4. Where User Data is Processed
Data created directly by the User (saved-card IDs, app preferences such as text size and theme) is stored only on the device.
Anonymous identifiers (install ID), FCM tokens, and notification preferences are stored in Google Firebase (asia-northeast3, Seoul region) for service operation and are not linked to any directly identifiable information.
Uninstalling the App immediately removes all on-device data such as saved cards. To remove the install ID and FCM token stored on the server, see Section 8 below.
5. System Permissions
The Company uses the following system permissions to provide core features. The User may decline or change any of these permissions at any time.
| Permission | Purpose |
|---|---|
| Notifications (POST_NOTIFICATIONS) | Display the daily card push notification |
| Advertising ID (com.google.android.gms.permission.AD_ID) | AdMob ad delivery and frequency capping |
| Internet (INTERNET) | Load card content and images |
| Boot completed (RECEIVE_BOOT_COMPLETED) | Restore notification schedule after device restart |
6. Advertising (AdMob)
The App displays ads through Google AdMob. AdMob may collect the advertising ID (AAID), approximate location (country level), and device information to deliver and measure ads.
- Users can reset their advertising ID or opt out of personalized ads in Android system settings → Privacy → Ads.
- For users in the EEA, UK, and Switzerland, Google's User Messaging Platform (UMP) collects separate consent and serves personalized or non-personalized ads accordingly.
- Google's ad policy: https://policies.google.com/technologies/ads
7. Third Parties and Data Processors
The Company does not, in principle, share the User's information with third parties, except in the following case:
- When a competent authority requests information for investigation purposes pursuant to applicable law.
The Company entrusts the following processors with limited processing for service operation:
| Processor | Scope |
|---|---|
| Google LLC (Firebase: Firestore, Functions, Cloud Messaging, Analytics, Remote Config) | Anonymous identifier and push-token storage, card delivery, anonymous usage analytics |
| Google LLC (AdMob) | Ad delivery and measurement |
8. User Rights
- Notification permission can be revoked at any time in Android system settings.
- The advertising ID can be reset or deleted in system settings.
- Uninstalling the App immediately removes all on-device data.
- To delete the install ID and FCM token stored on the server, email us at the address below with your install ID (visible in the app settings screen). We process such requests within 7 business days.
For other privacy-related inquiries, contact us at brunchnine@gmail.com.
9. Children Under 14
The App does not require sign-up and does not collect directly identifiable information. The App is designed for adult use; use by children under the age of 14 should be supervised by a legal guardian.
10. Privacy Officer
For inquiries about how we process personal information, please contact:
- Role: Brunch9 Privacy Officer
- Email: brunchnine@gmail.com
11. Changes to this Policy
This Privacy Policy may be updated to reflect changes in law or service. Updates will be announced in the App or on our website (brunch9.shop/app/sageframe).