詞語表、小朋友 profile、練習記錄、週進度統計同 App 設定，全部只儲存喺你部裝置本地（AsyncStorage）。我們唔會為呢啲資料建立雲端備份。刪除本 App 會一併刪除呢啲資料。

AI 抽生字功能預設關閉，須由你喺設定內明確開啟先可使用。當你使用此功能：

• 你揀選嘅默書紙相片會經加密連線傳送到我們嘅伺服器，再交由第三方 AI 服務（經 OpenRouter）進行文字辨識，抽取詞語。
• 相片只作即時處理，唔會被我們儲存；辨識結果直接回傳到你部裝置。
• 我們建議相片只包含默書詞語內容，避免影到姓名、班別等個人資料。
• 你可以隨時喺設定關閉此功能，唔影響其他功能使用。

本 App 提供一次性買斷嘅「專業版」內購。購買同「恢復購買」功能由第三方服務 RevenueCat 處理，用以驗證交易同還原購買狀態。就此，RevenueCat 會收到：

• 一個匿名嘅 App 用戶識別碼（由系統隨機產生，唔包含你嘅姓名或聯絡資料）；
• 你嘅購買記錄同收據資料（由 Apple App Store 提供）。

付款本身完全由 Apple 處理；我們同 RevenueCat 都接觸唔到你嘅信用卡或付款資料。詳情可參閱 RevenueCat 私隱政策。

本 App 不含任何廣告，亦冇植入任何廣告 SDK。

本 App 為家長同學生設計。我們唔會要求開設帳戶，唔收集姓名、電郵或任何可識別兒童身份嘅資料，亦唔會將任何資料用於廣告或跨 App 追蹤。

除第 2 節（AI 文字辨識）同第 3 節（購買驗證）所述嘅必要處理外，我們唔會將任何資料出售、出租或分享畀任何第三方。

Word lists, child profiles, practice history, weekly progress statistics and App settings are stored locally on your device only (AsyncStorage). We do not create cloud backups of this data. Deleting the App deletes this data.

The AI word-extraction feature is off by default and must be explicitly enabled in Settings. When you use it:

• The photo of the dictation sheet you select is sent over an encrypted connection to our server and processed by a third-party AI service (via OpenRouter) to recognise and extract words.
• Photos are processed transiently and are not stored by us; the extracted words are returned directly to your device.
• We recommend photographing only the word content and avoiding personal details such as names or class numbers.
• You can disable this feature at any time without affecting other features.

The App offers a one-time "Pro" purchase. Purchases and the "Restore Purchases" function are handled by the third-party service RevenueCat to validate transactions and restore purchase status. For this purpose, RevenueCat receives:

• an anonymous app user identifier (randomly generated; it contains no name or contact details), and
• your purchase history and receipt data as provided by the Apple App Store.

Payment itself is handled entirely by Apple; neither we nor RevenueCat ever see your card or payment details. See the RevenueCat Privacy Policy for details.

The App contains no advertising and embeds no advertising SDKs.

The App is designed for parents and students. No account is required. We do not collect names, email addresses or any data that could identify a child, and we do not use any data for advertising or cross-app tracking.

Apart from the necessary processing described in Section 2 (AI text recognition) and Section 3 (purchase validation), we do not sell, rent or share any data with third parties.