Privacy Policy
Effective · Last updated: July 18, 2026
Lotto Yaho (Korean title: 로또 야호, the “Service”) treats your personal information with care and complies with applicable law. This Policy explains what information the Service processes.
The Service is an app that analyzes past winning numbers and offers suggested lottery numbers for reference. It is an unofficial service with no connection to 동행복권 (Donghaeng Lottery) or any other lottery operator, and it does not guarantee a win.
1. Information We Collect & Process
- Automatically collected data — When you use the Service, your IP address, device and OS information, and browser information (User-Agent) may be transmitted automatically while connecting to the server. (Updating winning-number data, operating the Service)
- Advertising identifier — In the ad-supported (native) app version, Google AdMob may access your advertising identifier (IDFA/AAID) and similar data. (Serving ads)
- On-device data — Numbers you save to the “Saved numbers” (보관함) list are kept only on your device (local storage) and are not transmitted to or collected by our servers.
- Permissions — Notification permission (to show reminders to check your saved numbers against the draw) and the device motion sensors (for on-screen effects). That data is used only for real-time processing and is not stored or transmitted.
2. Third Parties & International Transfer
We use the provider below to serve ads, and information related to the advertising identifier may be processed outside Korea (in the United States).
3. Retention & Deletion
Saved-numbers data is stored only on your device and is removed immediately when you uninstall the app or delete the entry from the list. Automatically collected data is destroyed without delay once the purpose of processing has been fulfilled.
4. Your Rights
You can withdraw the notification and advertising-related permissions at any time in your device settings. If you do not want personalized ads, you can reset or limit your advertising identifier in your device’s ad settings.
- Android: Settings > Google > Ads > “Opt out of Ads Personalization”
- iOS: Settings > Privacy & Security > Tracking
5. Children’s Privacy
The Service is intended for users aged 19 or over and is not directed to children.
6. Changes to This Policy
If this Policy changes, we will provide notice within the app.
7. Contact