私隱政策Privacy Policy
呢份政策適用於流動應用程式「精進麻雀」（英文 Mahjong Sharp: Hong Kong Mahjong）。
我哋收集咩？
唔收集。本 app 唔會收集、傳送或者分享個人資料。冇帳戶、冇登入、冇雲端檔案同步。
本機儲存
設定（語言、玩法、音效、震動）、學習進度、歷史最佳分同其他練習狀態，只用裝置上嘅 AsyncStorage 本機儲存。刪除 app 就會一併刪除呢啲資料。
網絡
練習同聽牌／棄牌引擎喺你部裝置本機跑，唔使網絡。呢個公開網站同電郵支援先至要網絡。
商店、廣告同購買（現況）
App 內有商店畫面（例如體力藥、去廣告、完整版等選項），但現階段不涉真錢交易：未接上 App Store／Google Play 付款，亦唔會收集或處理付款資料。
- 廣告未啟用：未整合第三方廣告 SDK（例如 AdMob）；商店入面嘅「睇廣告」唔會向廣告商傳送資料。
- 購買未啟用：未整合 StoreKit／Play Billing；畫面上面嘅價錢只係介面佔位，撳咗亦唔會收費。
分析同追蹤
- 冇分析、冇崩潰回報 SDK。
- 冇追蹤：未整合會要求「允許追蹤」嘅 SDK；iOS 未加入
NSUserTrackingUsageDescription。 - 本網站（mahjongsharp.dmhongkong.com）唔設 cookie、唔跑第三方追蹤腳本。
兒童
本 app 唔針對 13 歲以下兒童收集資料；因為我哋根本唔收集個人資料。
聯絡
有關私隱查詢，請電郵 dobby.support+mahjong@gmail.com。
改動
如政策有改動，會喺呢頁更新，並改「最後更新」日期。
This policy applies to the mobile app Mahjong Sharp: Hong Kong Mahjong (Chinese: 精進麻雀).
What we collect
Nothing. The app does not collect, transmit, or share personal data. There are no accounts, sign-in, or cloud sync.
On-device storage
Settings (language, ruleset, sound, haptics), learning progress, best scores, and other practice state are stored only on your device with AsyncStorage. Deleting the app removes them.
Network
Drills and the wait/discard engine run on your device offline. This public website and email support need a network.
Shop, ads, and purchases (current state)
The app includes a Shop screen (for example stamina potions, remove-ads, and a full version option), but there are no real-money transactions at this stage: App Store / Google Play billing is not wired, and the app does not collect or process payment details.
- Ads are not enabled: no third-party ad SDK (such as AdMob) is integrated; the in-app “watch ad” control does not send data to advertisers.
- Purchases are not enabled: StoreKit / Play Billing are not integrated; prices shown in the UI are placeholders and tapping them does not charge you.
Analytics and tracking
- No analytics and no crash-reporting SDK.
- No tracking: no tracking SDK is integrated, and iOS does not include
NSUserTrackingUsageDescription. - This website (mahjongsharp.dmhongkong.com) sets no cookies and runs no third-party trackers.
Children
The app does not collect personal data from anyone, including children under 13.
Contact
Privacy questions: dobby.support+mahjong@gmail.com.
Changes
If this policy changes, we will update this page and the “Last updated” date.