使用上遇到問題，或想提供建議，歡迎來信：

If you run into a problem or have feedback, reach out at:

sxxyuan@gmail.com

我們會盡快回覆。

We'll get back to you as soon as we can.

Sink In（以下稱「我們」）是一款語言學習 App，能把你存下來的內容變成個人化課程。這份隱私權政策說明我們收集哪些資料、如何使用，以及你有哪些權利。

Sink In ("we", "our", or "us") is a language-learning app that turns text you save from things you read into personalized lessons. This Privacy Policy explains what information we collect, how we use it, and your rights.

我們收集的資料

Information we collect

• 帳號資訊：你的 Apple 或 Google 使用者 ID 與顯示名稱，用來辨識你的帳號。
• 你存下來的內容：你貼上或截圖用來產生課程的文字，以及你額外加上的標題、作者或來源。
• 學習資料：你的目標語言與程度、產生的課程內容（單字、文法、句構、語氣與語域）、間隔重複複習紀錄，以及連續天數、XP 等統計數字。
• 收藏夾：你建立用來整理內容的資料夾。

• Account identifiers: your Apple or Google user ID and display name, used to identify your account.
• Saved content: the text you paste or scan to create a lesson, along with any title, creator name, or source you optionally add.
• Learning data: your target language(s) and level, generated lesson content (vocabulary, grammar, syntax, and tone & register items), your spaced-repetition review history, and stats like streaks and XP.
• Collections: any folders you create to organize saved content.

我們不會收集你的位置、聯絡人或麥克風音訊。Sink In 只在你要拍照存文字時才會用到相機，辨識完全在你的裝置上進行（Apple 內建的 Vision 框架），照片本身不會上傳或儲存，只有辨識出的文字會被存下來。

We do not collect your location, contacts, or microphone audio. Sink In requests camera access only so you can photograph text to save it. Recognition happens entirely on your device (Apple's on-device Vision framework), and the photo itself is never uploaded or stored; only the recognized text is saved.

當你透過網址存下一段內容時，Sink In 會抓取來源音訊來產生逐字稿。這段音訊會透過 Google Cloud Speech-to-Text 處理，並在安全的雲端儲存空間保留一份壓縮版本，讓你可以在 App 內搭配存下的內容一起播放。

When you save a clip from a URL rather than pasting text directly, Sink In fetches the source audio to generate a transcript. That audio is processed via Google Cloud Speech-to-Text, and a compressed copy is retained in secure cloud storage so you can play it back in-app alongside your saved clip.

Sink In 不會自己打開或抓取你正在看的貼文。內容都是你自己帶進來的：用複製貼上，或讓裝置從截圖、照片辨識文字。除了你明確存下的內容之外，沒有其他被爬取或儲存的東西。

Sink In never opens or fetches the post you're reading. You bring in the text yourself, by copying it or by letting your device read it from a screenshot or photo, so there is nothing scraped and nothing stored beyond what you explicitly save.

我們如何使用資料

How we use your information

我們收集的資料只用於：用 AI 服務根據你存下的文字產生課程；安排你的間隔重複複習排程並追蹤進度；記住你的語言、程度與偏好設定。我們不會出售或出租你的資料給第三方，也不會把資料用於廣告。

We use the information we collect solely to: generate your lessons using AI services, schedule your spaced-repetition reviews and track your progress, and remember your language, level, and preference settings across sessions. We do not sell or rent your data to third parties, and we do not use your data for advertising.

產品分析

Product analytics

我們使用 PostHog 來了解 App 的功能是否好用，例如「有多少人完成了新手引導」或「複習功能被開啟了幾次」。傳送的內容只有使用事件（你做了什麼操作）和基本裝置資訊，絕不包含你存下的文字、逐字稿或課程內容。你可以隨時在「你」分頁 → 「分析」把它關掉；關掉之後就不會再有任何使用資料離開你的裝置。

We use PostHog to understand how the app is used — for example, how many people finish onboarding, or how often reviews are opened. What we send is limited to usage events (which actions you took) and basic device information; it never includes the text you save, your transcripts, or your lesson content. You can turn this off at any time in the You tab → Analytics, after which no usage data leaves your device.

第三方服務

Third-party services

• Apple 登入：apple.com/legal/privacy
• Google 登入：policies.google.com/privacy
• AI 服務（Anthropic Claude API 或 OpenAI API）：你存下的文字會傳送給 AI 服務商以產生課程內容。anthropic.com/legal/privacy、openai.com/policies/privacy-policy
• Google Cloud Speech-to-Text：用來將你從網址存下的內容轉成逐字稿。cloud.google.com/terms/cloud-privacy-notice
• Google Cloud Storage：儲存內容音訊的壓縮版本，供 App 內播放。cloud.google.com/terms/cloud-privacy-notice
• PostHog（產品分析）：只接收使用事件與基本裝置資訊，不包含你存下的任何文字，可在 App 內關閉。posthog.com/privacy

• Apple Sign-In: apple.com/legal/privacy
• Google Sign-In: policies.google.com/privacy
• AI services (Anthropic Claude API or OpenAI API): the text you save is sent to an AI provider to generate your lesson content. anthropic.com/legal/privacy, openai.com/policies/privacy-policy
• Google Cloud Speech-to-Text: used to transcribe audio from clips you save from a URL. cloud.google.com/terms/cloud-privacy-notice
• Google Cloud Storage: stores a compressed copy of clip audio for in-app playback. cloud.google.com/terms/cloud-privacy-notice
• PostHog (product analytics): receives usage events and basic device information only — never any text you save. Can be disabled in-app. posthog.com/privacy

資料儲存與安全

Data storage and security

你的資料儲存在安全的伺服器上，我們採用業界標準做法保護資料不被未經授權存取。只要帳號仍在使用中，我們就會保留資料；你可以隨時申請刪除。

Your data is stored on secure servers. We use industry-standard practices to protect it from unauthorized access. We retain your data for as long as your account is active, and you may request deletion at any time.

兒童隱私

Children's privacy

Sink In 並非針對13歲以下兒童設計，我們不會刻意收集13歲以下兒童的個人資料。若你認為有兒童提供了個人資料給我們，請與我們聯絡，我們會將其刪除。

Sink In is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal information, please contact us and we will delete it.

你的權利

Your rights

• 存取我們持有關於你的資料
• 刪除你的帳號與所有相關資料：可直接在 App 內完成（「你」分頁 → 刪除帳號），會立即永久移除你存下的內容、課程與複習紀錄
• 更正不正確的資訊

• Access the data we hold about you
• Delete your account and all associated data: you can do this directly in the app (You tab → Delete account), which immediately and permanently removes your saved content, lessons, and review history
• Correct inaccurate information

如需行使以上任何權利，請來信：sxxyuan@gmail.com

To exercise any of these rights, email us at sxxyuan@gmail.com.