Yut Daily Challenge Privacy Policy
- App name: 윷 데일리 챌린지 (Yut Daily Challenge) (Google Play package name: com.sbgc.yut)
- Controller: Kim Seunghoon, individual developer (Google Play developer name: s.h.)
- Korean: 한국어
- Effective date: November 3, 2026
- Last updated: November 3, 2026
Kim Seunghoon (the "developer") handles the personal information of people who use Yut Daily Challenge (the "app") in accordance with the Personal Information Protection Act of Korea and other applicable laws. This policy explains what information the app stores, where it is stored, to whom it is sent, and how you can make choices and exercise your rights. This is a translation of the Korean policy. The app itself is available in Korean only. If the two versions differ, the Korean version applies, except where the law of your country requires otherwise.
Summary
- The app has no sign-up. The developer runs no servers of its own and uses no analytics tools.
- Game records, settings, and names entered in Play Together are stored only on your device and are not sent to the developer.
- When you use ads (Google AdMob) or Google Play billing, the information they need is sent to Google LLC.
- The current version does not connect to Google Play Games (leaderboards and achievements). The Play Games items in this policy apply from the update that connects Play Games, and we will announce that on this page in advance. Even after it is connected, you can use the whole game without signing in to Play Games.
- Depending on your region, you can refuse personalized ads or change your consent inside the app.
1. Information we handle and why
1.1 Information stored only on your device
| Item | Purpose | Retention |
|---|---|---|
| Settings, tutorial progress, record of closing the holiday notice card | Keep app settings | Until you delete the app or clear its data |
| Player names, team names, and team member names entered in Play Together | Show names on the Play Together screens and results; prefill your last entries next time | Until you delete the app or clear its data. Replaced when you change them |
| Game in progress, last game result | Resume a game, view the result again | Until the game ends or the next result replaces it |
| Today's Yut (daily challenge) records | Trends, streaks, achievement progress | Deleted by the app after 400 days |
| Aggregate statistics, achievement progress, points, unlocked items | Provide game features | Until you delete the app or clear its data |
| Premium purchase status (cache) | Show purchase status offline | Rechecked with Google Play when the app starts |
| Ad consent choice, ad interval counter | Apply your choice, limit ad frequency | Until you delete the app or clear its data |
| Result of the Korea region check | Show the ad notice screen to users in Korea | Until you delete the app or clear its data |
- Play Together names are used only to show whose turn it is when several people take turns on one device. You do not need to enter real names, and you can keep the defaults (for example, Player 1, Blue Team). These names are never sent to a leaderboard or to Google.
- The Korea region check is done on the device using the SIM country, network country, device region setting, and time zone, and only the result is stored on the device. It is not sent anywhere, and the app does not request location permission.
- The information above is not sent to the developer, and the developer cannot see it.
1.2 Information sent to Google
The current version does not connect to Play Games. The Play Games row in the table below and the notes about it apply from the update that connects Play Games. The current version does not send a player ID, profile, scores, or achievements through Play Games, and does not start the Play Games SDK. Achievements and Today's Yut records are stored only on your device.
| Feature | Information sent | Purpose | Required? |
|---|---|---|---|
| Ads (Google AdMob, Google User Messaging Platform (UMP)) | IP address (may be used to estimate approximate location), device identifiers such as advertising ID and app set ID, ad-related interactions such as app launches, taps, and video views, diagnostic information such as app performance, your ad consent choice. If an error occurs in the ad feature, the Google Mobile Ads SDK may send error details (stack information) and device information (device type, OS version, memory status, app version) to Google. App code content is redacted before it is sent | Show and measure ads, prevent fraud, apply your consent choice, checking ad feature errors | Required to show ads. Personalized ads are optional (Section 2). Sending error information cannot be turned off by the user |
| Play Games (Google Play Games Services) — not connected in the current version | After the connecting update, if you are signed in: Play Games player ID, profile name and avatar, Today's Yut scores, achievements. Also analytics and diagnostic information that the Play Games SDK collects automatically | Today's Yut leaderboard and achievements. Google uses analytics and diagnostic information for SDK stability and product improvement | Optional. You can use the whole game without signing in (see automatic sign-in below) |
| Google Play billing (one-time premium purchase) | Purchase history (product, purchase status, etc.) | Process payment, verify and restore purchases | Only when you buy. To check purchase status, the app queries Google Play for this app's purchases when it starts or returns to the foreground and when you open the shop |
- The ad items are based on Google's published Google Mobile Ads SDK data disclosure: https://developers.google.com/admob/android/privacy/play-data-disclosure
- (From the update that connects Play Games) Play Games Services tries to sign you in automatically when the app starts. If your device's Google account has a Play Games profile, you may be signed in without tapping anything, and while signed in your Today's Yut scores and achievements are uploaded to Play Games automatically. If you have no profile, Google may suggest creating one, and you can keep playing without it. Source: https://developer.android.com/games/pgs/android/android-signin
- The Play Games items are based on Google's published Play Games Services SDK data disclosure: https://developer.android.com/games/pgs/data-collection
- Payment details such as card numbers are handled by Google, and the developer does not receive them. The app handles only the purchase information needed to check purchase status on the device, and stores only whether you own the purchase.
1.3 Information you send us directly
| Item | Purpose | Retention |
|---|---|---|
| Email address, content of your inquiry | Answer inquiries, handle requests to exercise your rights | Deleted without delay once handled, unless the law requires us to keep it for a set period |
1.4 Information the developer does not collect
- We do not ask for personal details such as phone number, address, or date of birth. Play Together names are stored only on the device, as described in 1.1.
- The app does not request location, contacts, photos/storage, camera, or microphone permissions.
- The App does not use its own crash reporting or analytics tools. However, the Google Mobile Ads SDK may send error details to Google when an error occurs in the ad feature; this information is described in section 1.2. Information collected by the Play Games SDK on its own, once connected, is also described in section 1.2.
1.5 App quality information from Google Play (Android vitals)
On some devices whose users have turned on "automatically share usage and diagnostics," Google Play collects quality information such as app crashes and freezes and provides it to the developer through Google Play Console (Android vitals). Google collects this at the device level, not the app, and whether it is collected depends on your device settings. The developer uses this information only to fix errors and improve quality.
Source: https://support.google.com/googleplay/android-developer/answer/9844486
1.6 Closed test builds
Closed test builds have a [Copy test statistics] item on the [About] screen. Tapping it only copies app usage statistics such as number of games, win rate, and screen size to the device clipboard; nothing is sent automatically. The statistics contain no account, names (including Play Together names), advertising ID, or device identifiers. The developer receives them only if a tester pastes and sends them, and uses them only to analyze test results. Public release builds do not have this feature.
2. Ads and your choices
The app shows ads so that it can be offered for free. The app does not start the ad SDK until it has checked with Google UMP whether consent is needed in your region. The in-app ad choice item is at [Settings] > [Privacy & account] > [Ad privacy choices] (in the Korean app: [설정] > [개인정보·계정] > [광고 개인정보 선택]). As described below, it is shown or hidden depending on your region.
2.1 Users in Korea
- On first launch, the [Ad notice] screen asks whether you consent to personalized ads. You can choose [I am 14 or older, I agree] ([만 14세 이상, 동의]) or [I do not agree] ([동의하지 않음]).
- If you choose [I do not agree] or do not answer, only non-personalized ads are requested. This makes no difference to gameplay.
- You can choose again at any time at [Settings] > [Privacy & account] > [Ad privacy choices].
- Only users aged 14 or older may choose [I am 14 or older, I agree]. The app has no process to obtain and verify a legal guardian's consent, so if you are under 14, please choose [I do not agree]. If you have already agreed, you can change it in [Ad privacy choices].
- Even on a device judged to be in Korea, if Google judges that consent is required under the rules of the European Economic Area, the UK, or Switzerland, Google's consent screen in 2.2 appears instead of the [Ad notice], and only non-personalized ads are requested regardless of your choice.
2.2 Users in the European Economic Area (EEA), the UK, and Switzerland
- Google's consent screen appears on first launch.
- You can change your choice or withdraw consent at any time at [Settings] > [Privacy & account] > [Ad privacy choices].
2.3 Residents of certain US states
Residents of California, Colorado, Connecticut, Delaware, Florida, Indiana, Iowa, Kentucky, Maryland, Minnesota, Montana, Nebraska, New Hampshire, New Jersey, Oregon, Rhode Island, Tennessee, Texas, Utah, and Virginia can opt out of the sale or sharing of personal information at [Settings] > [Privacy & account] > [Ad privacy choices].
If you opt out, your choice is passed to Google, data processing is restricted, and personalized ads are not shown. You can change this choice at any time in the same menu. The developer does not sell personal information for money.
2.4 Users in other regions
The in-app ad choice item is not shown. You can manage ads in these ways:
- Reset or delete your advertising ID in the ads menu of your device settings (the menu location depends on the device and Android version)
- Google My Ad Center: https://myadcenter.google.com
2.5 Automatic collection
The app itself uses no cookies or tracking tools. The ad SDK collects the information in 1.2, and you can refuse personalized ads by the methods in 2.1 to 2.4. If you do not want the information needed to show ads to be sent at all, please stop using and delete the app.
3. Retention and deletion
- Information stored on your device: deleted immediately when you delete the app or clear its storage data in your device's app info settings. App data is excluded from Android backup, so it is not restored if you reinstall the app.
- Information sent to Google: kept by Google under Google's privacy policy. https://policies.google.com/privacy
- Inquiry emails: deleted from the mailbox and trash without delay once handled. If the law requires us to keep them, we keep the basis and items separately and delete them when the period ends.
4. Sharing with third parties and international transfer
The developer does not sell your personal information. Because the app uses Google services, information is transferred abroad as shown below when you use the related feature. We do not provide it to anyone else, except in response to lawful requests such as from investigative authorities. The developer does not outsource the processing of personal information.
| Recipient | Items transferred | Country | When and how | Purpose | Retention | How to refuse and the effect |
|---|---|---|---|---|---|---|
| Google LLC (ads: AdMob, UMP) | Ad items in 1.2 | United States and countries where Google operates servers | Sent over the internet when ads are requested or viewed while using the app | Show and measure ads, prevent fraud | Under Google's policy | Refuse personalized ads in Section 2. Transfers needed to show ads cannot be refused while using the app; if you do not want them, delete the app |
| Google LLC (Play Games) — not connected in the current version | Play Games items in 1.2 | United States and countries where Google operates servers | When signed in (including automatic sign-in) and uploading scores or achievements or viewing leaderboards, and when the Play Games SDK sends analytics and diagnostic information; sent over the internet | Leaderboards and achievements, SDK improvement | Under Google's policy | If you do not sign in, scores, achievements, and profile information are not sent; only the leaderboard and achievement features are unavailable. Uploaded data can be deleted as described in Section 6 |
| Google LLC (Google Play billing) | Purchase history | United States and countries where Google operates servers | Sent through Google Play when you buy, and when purchase status is checked or restored at app start, return, or shop entry | Process payment, verify purchases | Under Google's policy | If you do not buy, no payment information or purchase history is created; only premium features are unavailable |
| Google LLC (Gmail, inquiry email) | Email address, content of your inquiry | United States and countries where Google operates servers | When you send an inquiry email | Answer inquiries | Section 3 | Nothing is sent if you do not send an email |
- Google contact: https://support.google.com/policies/contact/general_privacy_form
- Google's safeguards for international transfers: https://policies.google.com/privacy/frameworks
- How Google uses information from apps: https://policies.google.com/technologies/partner-sites
5. Security measures
As an individual developer, the developer takes these measures:
- With no servers or accounts of its own, the developer does not gather or store users' personal information.
- Game data and Play Together names are stored in the app-private storage area that Android protects from other apps, and are excluded from Android backup.
- The app does not request location, contacts, storage, camera, or microphone permissions. The permissions it uses are internet, network state, vibration, Google Play billing, and the advertising ID, ad measurement, and background work permissions used by the ad SDK. All are normal permissions that are not separately requested from you.
- The developer does not receive payment details.
- Only the privacy officer reads inquiry emails.
- Google states that data sent by the ad SDK is encrypted in transit with TLS and data collected by Play Games Services (once connected) is encrypted in transit with HTTPS.
- If the developer learns of a personal information breach, it will notify users as required by law and, where necessary, report it to the Personal Information Protection Commission or the Korea Internet & Security Agency.
6. Your rights and how to exercise them
You (or a legal guardian for a child under 14) may request access to, correction, deletion, or suspension of processing of your personal information, and may withdraw consent. The only personal information the developer keeps directly is inquiry email, so you can exercise most rights yourself as follows:
- Delete device data: delete the app or clear its storage data in your device's app info settings.
- Play Together names: change them or reset them to defaults at any time on the Play Together setup screen.
- Change or withdraw personalized ad consent: follow Section 2.
- Advertising ID: reset or delete it in the ads menu of your device settings.
- Play Games (not connected in the current version; applies from the connecting update): signing in is optional, and you can sign in with the Play Games sign-in button in the app (for example, on the Today's Yut result screen). If your device has a Play Games profile, you may be signed in automatically when the app starts (1.2). The app has no sign-out menu. You can delete this game's Play Games data and profile in your Google Play Games profile settings: https://support.google.com/googleplay/answer/9130646
- Purchase history: check your Google Play purchase history in your Google account. You can reload purchase status at [Settings] > [Privacy & account] > [Restore purchases] ([구매 복원]).
- Other requests: email us at the address in Section 9. We reply within 10 days of receiving your request and, if we cannot handle it in that time, we will tell you why and when we expect to. We may ask for additional information only as needed to confirm that the request comes from you.
7. Children's personal information
The app is intended for users aged 13 and older and is not directed at children under 13. The developer does not knowingly collect children's personal information. In Korea, if consent is needed to process the personal information of a child under 14, a legal guardian's consent must be obtained. The app has no such process, so it does not ask users under 14 to consent to personalized ads (2.1). If you believe a child's personal information is being processed, please let us know at the email address in Section 9.
8. Users in the European Economic Area (EEA) and the UK (GDPR)
- Controller: Kim Seunghoon, seunghoon.system@gmail.com
- Legal bases:
- Personalized ads and other ad-related processing that requires consent: consent (GDPR Art. 6(1)(a))
- Non-personalized ads to keep the service free, and ad fraud prevention: legitimate interests (Art. 6(1)(f))
- Play Games leaderboard (from the connecting update) and premium purchase processing: performance of the service you request (Art. 6(1)(b))
- Analytics and diagnostic information collected automatically by the Play Games SDK: processed by Google for SDK stability and product improvement (under Google's privacy policy)
- Answering inquiries: legitimate interests (Art. 6(1)(f))
- Compliance with legal obligations: Art. 6(1)(c)
- Rights: you may request access, rectification, erasure, restriction of processing, objection, and data portability, and you may withdraw consent at any time (this does not affect processing before withdrawal). Send requests to the email address in Section 9.
- Complaints: you may complain to the supervisory authority where you live, work, or where the infringement occurred.
- List of EEA supervisory authorities: https://www.edpb.europa.eu/about-edpb/about-edpb/members_en
- UK Information Commissioner's Office (ICO): https://ico.org.uk/make-a-complaint/
- International transfer: follows Google's transfer safeguards in Section 4.
9. Privacy officer and contact
- Privacy officer: Kim Seunghoon
- Email: seunghoon.system@gmail.com
Please send privacy questions, complaints, and requests for remedies to the email address above.
10. Remedies (Korea)
If you need to report or get advice about a privacy infringement, you can contact these Korean agencies:
- Personal Information Infringement Report Center (run by KISA): privacy.kisa.or.kr, 118 (in Korea)
- Personal Information Dispute Mediation Committee: www.kopico.go.kr, 1833-6972
- Supreme Prosecutors' Office: www.spo.go.kr, 1301 (in Korea)
- Korean National Police Agency: ecrm.police.go.kr, 182 (in Korea)
11. Changes to this policy
If we change this policy, we will post the changes and the effective date on this page at least 7 days before they take effect. For important changes, such as collecting more items or sharing more widely, we will give notice at least 30 days in advance and ask for consent again where the law requires.
- Effective date: November 3, 2026
- Last updated: November 3, 2026
Change history
- 2026-11-03: Sections 1.2 and 1.4 now state that the Google Mobile Ads SDK may send error details (stack and device information) to Google when an ad feature error occurs (matching the Play Data safety declaration). Effective date set to the correction date, 2026-11-03. Korean version identical.
- 2026-11-01: Effective date set to the public release date (2026-11-02). Marked in the Summary and Sections 1.2, 4, 6, and 8 that the current version does not connect to Play Games. English translation added.