CLASSIC SOLITAIRE · CARD CALM
Privacy Policy
This policy explains how Classic Solitaire: Card Calm (com.osj.classiccard) handles information.
Effective / revised: October 16, 2026
1. Operator and contact
Next Studio (South Korea) operates the app. Privacy inquiries: dhalska2@gmail.com.
2. Information stored on your device
The app stores an active game, elapsed time, game settings, language, sound and haptic choices, and local activity records. Local data remains until it is cleared or the app is deleted. Device and cloud backups are controlled by your platform provider.
3. Supabase account and game data
The app creates an anonymous Supabase user ID by default. If you choose Apple or Google sign-in, account identifiers, email when supplied by the provider, authentication records, country code, synced preferences and progress, ranked tickets, ranked attempt seeds, ordered gameplay action logs, verified clear times, and leaderboard records may be stored. Ranked action logs are used to validate results and prevent cheating.
4. Advertising
The mobile app uses Google AdMob for interstitial and optional rewarded ads. Google may process IP address, approximate location derived from IP, device or advertising identifiers, ad views and interactions, diagnostics, fraud signals, and consent choices. The app does not request precise location. Regional consent controls are provided where required. On iOS, advertising tracking requiring the identifier for advertisers is used only after App Tracking Transparency permission.
5. Purchases
If you make an in-app purchase, Apple or Google Play and our verification service process product and transaction identifiers, purchase tokens, purchase environment, verification and refund status, and resulting entitlements. We do not receive payment card details. Availability and displayed products depend on the released build and store configuration.
6. Analytics, crashes, and notifications
The Android release uses Firebase Crashlytics to collect crash logs, stack traces, relevant app state, device metadata, and installation identifiers for stability diagnosis. Crashlytics collection is disabled in development builds. The app does not include Firebase Analytics and does not send push notifications. We will revise this policy before enabling materially different collection.
7. Purposes and legal basis
We process information to save and restore game state, authenticate accounts, operate verified rankings, deliver and verify optional ad rewards, verify purchases, prevent abuse, provide support, comply with legal obligations, and improve service reliability. The legal basis depends on the feature and applicable law, including contract performance, consent, legitimate interests, and legal obligations.
8. Sharing and international processing
Service providers may process data only for their services: Supabase for authentication and storage; Apple and Google for sign-in, store services, consent, and advertising; GitHub Pages for this website; and Gmail for support inquiries. Their servers may be outside South Korea. This website contains no advertising or analytics scripts, but GitHub may process IP addresses and access logs for hosting and security.
9. Retention and deletion
Game account data is retained while needed to provide restoration, ranking, entitlement, security, and legal functions. Completed ranked results may remain until game data deletion. Purchase records involved in disputes or legal duties may be retained as required. Support email is retained only as needed to resolve the inquiry. Store transaction records held by Apple or Google are controlled by those providers.
10. Your choices and rights
You can decline optional sign-in, personalized advertising consent, or ATT permission and still use available non-personalized or limited features. Subject to applicable law, you may request access, correction, deletion, portability, restriction, objection, or withdrawal of consent. We may verify identity within a reasonable scope.
11. Children, security, and changes
The game does not require users to type personal information into gameplay. We do not knowingly ask children to submit personal information. A guardian may contact us for review or deletion. We use reasonable safeguards but no system is absolutely secure. Material changes will be reflected by updating this page and date.