Owlmakers explains here how "Lotto Number Generator" (로또 번호 생성기) handles information. This is an unofficial app. It is not affiliated with Donghaeng Lottery and does not sell lottery tickets.
"My numbers" stores the draw, the numbers of each game, the source (pick, QR or manual entry) and the time added. Pick history keeps the numbers and time of your last 100 picks. The app also stores the number of games, fixed and excluded numbers, the last result, animation, language, theme and reminder settings, ad display intervals, the time until banners are hidden, and extra draw results it has loaded.
A backup exports these values as a JSON file. It includes your numbers, history and settings and is plain, unencrypted text. On Android 10 and later it is saved in the Downloads folder, so please check who can access the file before you move or keep it. A restore reads the backup file you choose and, after you confirm, replaces your existing data.
If you choose to save a result as an image, the app saves a picture with the numbers, the date and time, and the app name to the "Pictures/Lotto" album in your gallery. If you choose to share, the app hands the numbers or draw results as text, or an app introduction with the store link, to your device's share sheet. What happens next depends on the app you choose. Copying uses the system clipboard.
The camera is used only to read QR codes while the Check screen is visible and the app is in the foreground. Camera frames and the photo you choose are processed on your device (Google ML Kit). We do not record video or send photo or video originals to the developer's servers. Only the draw and the game numbers that were read are saved to "My numbers".
When you use "Read from photo", a copy of the file you pick may be created in the app cache while you choose it, and the app does not delete it right away. If the original is in cloud storage, that service's policy may apply.
The camera permission is used to read QR codes. The notification permission and the boot receiver are used for on-device reminders (sales deadline and draw) at the days and times you choose. These reminders are created on the device (announcements from the developer are described under "Push notifications" below). The app does not use location, contacts, microphone or account permissions. The internet and advertising ID permissions are used for draw lookups, ads and usage statistics.
The app may show banner ads, native ads on list, result and exit screens, an interstitial ad after a task is done, and a rewarded ad you can choose to hide banners for a while. To provide, analyze and secure ads, the ad SDK may collect and share the advertising ID and app set ID, the IP address (to estimate an approximate region), app interactions and diagnostics. Transfers are protected with TLS. Saved numbers and QR contents are never put into ads.
Where consent is required, the app handles the UMP consent flow before it starts the ad SDK. Where it is offered, you can change your choice in Settings under ad privacy settings, and you can manage the advertising ID in your device's Google ad settings.
Google ads: https://policies.google.com/technologies/ads
Google Analytics for Firebase collects the names and counts of screen views and button actions. Automatic SDK collection may include a per-install app instance ID, the advertising ID, sessions, device and app information and an approximate region estimated from the IP address. We do not send saved numbers, QR contents, photos, backup contents or precise location. Google's policy: https://policies.google.com/privacy
Pulse sends the app name, version, display language, screen and action names, ad reactions and an in-use signal to https://api.owlmakers.com/v1/pulse. It uses a temporary session ID created on each launch and does not send a permanent device ID. The server does not store IP addresses. It only counts the names of the country, region and city, and it keeps raw usage statistics for one year and then deletes them. The purpose is usage analysis. The app works even if this server does not respond.
Google ML Kit, which reads QR codes, may process diagnostic and usage data such as device and app information, per-install identifiers, performance and errors. Google says it uses HTTPS and does not share this with third parties. Details: https://developers.google.com/ml-kit/android-data-disclosure
To show draw results, the app sends HTTPS requests that include the draw number to Donghaeng Lottery (dhlottery.co.kr) and to smok95.github.io. It looks up results only when a newer draw than the one in the app exists and you open the app, view the Check screen or retry. Those servers may receive your IP address. When you open the official site or a store link, or receive an app update, that service's policy applies.
This app uses Google's Firebase Cloud Messaging (FCM) to receive announcements and notices sent by the developer. When you open the app, Google assigns an FCM installation ID (registration token) to this installation; the app does not send or store this value on the developer's servers. The app subscribes to notification topics for the app name and your display language, and Google processes that subscription. A notification goes with the same content to every user of the same app and language and carries no personal data. On Android 13+ the notification permission is requested only when you tap the in-app notice line or the settings row, and you can use every other feature without allowing it. You can turn notifications off at any time in the device's Settings → Apps → Notifications, and you stop receiving them when you uninstall the app.
You can delete My numbers and pick history in the app. Clearing app data in device settings or uninstalling removes internal data. A backup file in Downloads and images saved to the gallery must be deleted separately and may remain after you uninstall. You can turn off camera and notification permissions in device settings. The app has no account of its own, so there is no account deletion. You do not need to send QR contents, photos or backup files when you contact us.
This app is not directed to people under 19. If this policy changes, we will post the change on this page.
Developer Owlmakers · support@owlmakers.com