Privacy Policy
Starlit Woods: Lumina Kitchen (별빛 숲 : 루미나 키친)
Last updated: October 2, 2026
GonggamStudio ("we", "our", or "us") operates "Starlit Woods: Lumina Kitchen" ("App"), a restaurant management game.
This privacy policy describes what information the App collects and how it is used and shared.
The App has no sign-up process. To keep your game records on our server, an anonymous account is created automatically the first time you open the App, without your name, email or phone number.
If you wish, you can link a Google account to keep your records when you change devices.
1
Information We Collect
We may collect the following data:
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Anonymous account identifier – a random value created by our server the first time you open the App (not your name, email, phone number or device serial)
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Game records (shop stage, coins and gems, station levels, recipes, staff and shop upgrades, goal progress, the applied state of purchased items, sound/vibration/language settings) – saved on our server to back them up and restore them on another device
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If you link a Google account: the email address and account identifier of that account – for sign-in and account verification (we never receive your password)
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If you make a purchase: the product ID, Google Play order number and purchase token, and purchase time – to verify payments, prevent duplicate grants and handle refunds (we never receive card numbers or other payment details)
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Push notification token – created by Google Firebase (Cloud Messaging) and stored on our server to send notifications
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App instance identifier and app interactions (usage statistics such as shop expansions, ad rewards and purchases) – collected by Google Firebase (Analytics)
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Device identifiers such as the advertising ID, approximate location (based on IP), app interactions, crash logs and diagnostics – collected by Google AdMob when ads are shown in the App
2
Information Stored on Your Device
Your game records are also stored on your device. While you are offline they are stored only on your device, and the server copy is updated when you reconnect.
If Google backup is turned on for your Android device, these records may be included in your device backup.
3
Why We Collect This Data
We use this data only to:
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Back up your game records and restore them when you change devices or reinstall the App
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Verify and deliver purchases, prevent duplicate grants and handle refunds
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Send notifications (you can turn them off in your device settings)
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Improve game balance and convenience through usage statistics (Google Firebase)
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Serve ads, measure ad performance and grant rewards for rewarded ads via Google AdMob
4
Data Sharing and Processors
We do not share your data with any third parties except:
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Supabase (server hosting) – stores and processes your account identifier, game records, your email address if you link an account, purchase verification records and push notification token
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Google (account linking) – handles sign-in with the Google account you choose; we never receive your password
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Google Play (payments) – processes purchases; we never receive your payment details
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Google Firebase (usage statistics and notifications, as a processor) – app instance identifier, app interactions, push notification token
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Google AdMob (ads and ad personalization) – device identifiers such as the advertising ID, approximate location, app interactions, crash logs and diagnostics
5
Retention
Your account and game records on our server are kept until you delete them. Once deleted, they are removed immediately and cannot be restored.
Purchase verification records are kept for 5 years as required by the Korean Act on Consumer Protection in Electronic Commerce, and then deleted.
6
Notification Permission
On Android 13 and later, the App asks for notification permission before sending notifications. You can keep playing without allowing it and change it any time in your device settings.
7
User Rights
You have the right to:
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Delete your server account and records, and the records on your device, with "Settings → Delete account & data" in the App
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Change your ad consent with "Settings → Ad privacy settings" in the App (shown in regions where it applies)
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Reset or delete your advertising ID, or opt out of personalized ads, in your device settings (Settings → Google → Ads)
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Turn off notifications for the App in your device settings
8
Data Deletion
Tapping "Settings → Delete account & data" in the App immediately deletes this App's game records and push notification token on our server, together with the records on your device. If you do not use the same account in other GonggamStudio apps, your sign-in account (including the email of a linked Google account) is deleted as well. Deleted records cannot be restored.
Purchase verification records remain for the period required by law. One-time purchases such as Remove ads can be recovered through your Google Play purchase history.
If you have already deleted the App, email us with the email address of the Google account you linked using the button below. We will delete it promptly after checking.
✉ Send email
9
Security
All communication between the App, our server, payments and ads is encrypted over HTTPS.
10
Policy Updates
If this policy changes, we will post the update on this page and update the date above.
We recommend checking this page regularly.
11
Children's Privacy
This app is not primarily directed at children under the age of 13.
We do not knowingly collect personal information from children under 13.