WaterDrop Privacy Policy
# WaterDrop Privacy Policy
- **Service name:** WaterDrop (워터드롭)
- **Effective date:** June 1, 2026
- **Last updated:** June 1, 2026
WaterDrop ("this app") respects your privacy. This app has no sign-up or login, and the data you enter — such as your water-intake records — is stored only on your device. This policy explains what information the app collects and how it is handled.
## 1. Information This App Collects or Transmits
### 1.1 Directly Identifiable Information
This app does **not collect** any directly identifiable information such as your name, email, phone number, or account credentials. There is no registration or login.
### 1.2 Locally Stored Information
The following information is stored **only on your device** (`shared_preferences`) for your convenience and is never transmitted to any external server:
- Water-intake records (amount, time, date)
- Cup presets (custom volumes)
- Daily goal
- App settings such as notifications, theme, and language
For the home-screen widget, this data may also be mirrored to on-device shared storage (Android `SharedPreferences` / iOS App Group), but it likewise never leaves your device. Deleting the app removes all of this data.
### 1.3 Information Collected via Third-Party Services
#### (1) Google AdMob (advertising)
To offer the app for free, this app displays Google AdMob ads. AdMob may collect and process the following to deliver personalized advertising:
- Advertising identifier (Android Advertising ID / iOS IDFA)
- IP address
- Device information (model, OS version, etc.)
- Ad-interaction data
On iOS, in accordance with App Tracking Transparency, the app asks for your permission before accessing identifiers used for tracking. You may decline.
For details on Google's handling of advertising data, see the Google Privacy Policy (https://policies.google.com/privacy) and Google Advertising policies (https://policies.google.com/technologies/ads).
#### (2) App Update Check
This app uses the update-check features of Google Play (`in_app_update`) and the App Store to inform you of new versions. No personally identifiable information is collected in this process.
## 2. Permissions
This app does **not request sensitive permissions** such as camera, microphone, contacts, location, or storage. It uses only internet access (`INTERNET`) for serving ads and checking for updates.
## 3. Data Retention
- **Locally stored data:** Retained until you delete the app, at which point it is removed.
- **Data processed by third parties (Google AdMob):** Governed by the respective provider's privacy policy.
## 4. Third-Party Disclosure
Other than the advertising purpose (Google AdMob) described in section 1.3, this app does not provide or sell your personal information to any third party.
## 5. Your Rights
- **Delete data:** Use the in-app data-reset feature, or delete the app, to remove all data stored on your device.
- **Reset advertising identifier:** You can reset your advertising identifier or limit personalized ads in your device settings.
- Android: Settings > Google > Ads
- iOS: Settings > Privacy & Security > Tracking
- **Opt out of tracking:** On iOS, you may decline tracking in the App Tracking Transparency dialog.
## 6. Children's Privacy
This app is not directed at children under the age of 14 (and under the age of 13 for COPPA compliance) and does not knowingly collect personal information from children. AdMob ads are served to a general audience.
## 7. Contact
For any questions regarding the handling of personal information, please contact:
- **Developer:** SiU Ahn (안시우)
- **Email:** siwooeo@gmail.com
## 8. Changes to This Policy
This policy may be revised in response to changes in law or the service. Any changes will be announced on this page, and significant changes will be communicated through an in-app notice or update.
- **Service name:** WaterDrop (워터드롭)
- **Effective date:** June 1, 2026
- **Last updated:** June 1, 2026
WaterDrop ("this app") respects your privacy. This app has no sign-up or login, and the data you enter — such as your water-intake records — is stored only on your device. This policy explains what information the app collects and how it is handled.
## 1. Information This App Collects or Transmits
### 1.1 Directly Identifiable Information
This app does **not collect** any directly identifiable information such as your name, email, phone number, or account credentials. There is no registration or login.
### 1.2 Locally Stored Information
The following information is stored **only on your device** (`shared_preferences`) for your convenience and is never transmitted to any external server:
- Water-intake records (amount, time, date)
- Cup presets (custom volumes)
- Daily goal
- App settings such as notifications, theme, and language
For the home-screen widget, this data may also be mirrored to on-device shared storage (Android `SharedPreferences` / iOS App Group), but it likewise never leaves your device. Deleting the app removes all of this data.
### 1.3 Information Collected via Third-Party Services
#### (1) Google AdMob (advertising)
To offer the app for free, this app displays Google AdMob ads. AdMob may collect and process the following to deliver personalized advertising:
- Advertising identifier (Android Advertising ID / iOS IDFA)
- IP address
- Device information (model, OS version, etc.)
- Ad-interaction data
On iOS, in accordance with App Tracking Transparency, the app asks for your permission before accessing identifiers used for tracking. You may decline.
For details on Google's handling of advertising data, see the Google Privacy Policy (https://policies.google.com/privacy) and Google Advertising policies (https://policies.google.com/technologies/ads).
#### (2) App Update Check
This app uses the update-check features of Google Play (`in_app_update`) and the App Store to inform you of new versions. No personally identifiable information is collected in this process.
## 2. Permissions
This app does **not request sensitive permissions** such as camera, microphone, contacts, location, or storage. It uses only internet access (`INTERNET`) for serving ads and checking for updates.
## 3. Data Retention
- **Locally stored data:** Retained until you delete the app, at which point it is removed.
- **Data processed by third parties (Google AdMob):** Governed by the respective provider's privacy policy.
## 4. Third-Party Disclosure
Other than the advertising purpose (Google AdMob) described in section 1.3, this app does not provide or sell your personal information to any third party.
## 5. Your Rights
- **Delete data:** Use the in-app data-reset feature, or delete the app, to remove all data stored on your device.
- **Reset advertising identifier:** You can reset your advertising identifier or limit personalized ads in your device settings.
- Android: Settings > Google > Ads
- iOS: Settings > Privacy & Security > Tracking
- **Opt out of tracking:** On iOS, you may decline tracking in the App Tracking Transparency dialog.
## 6. Children's Privacy
This app is not directed at children under the age of 14 (and under the age of 13 for COPPA compliance) and does not knowingly collect personal information from children. AdMob ads are served to a general audience.
## 7. Contact
For any questions regarding the handling of personal information, please contact:
- **Developer:** SiU Ahn (안시우)
- **Email:** siwooeo@gmail.com
## 8. Changes to This Policy
This policy may be revised in response to changes in law or the service. Any changes will be announced on this page, and significant changes will be communicated through an in-app notice or update.