Privacy Policy
Last updated: 18 October 2026
Hushday ("the app") is a headache diary made by an independent developer based in Taiwan. This policy explains what information the app handles. We have no account system and no servers that receive your data.
Your headache log
Headaches, times, intensity, where it hurts, symptoms, triggers, medicines, notes and settings are stored on your iPhone. If iCloud is on for your Apple Account, the log is also kept in your own iCloud (iCloud key-value storage) so your devices can share it. Apple stores that copy; we cannot read it. If you delete the app, the data on that iPhone is deleted with it.
Apple Health
If you allow it, Hushday reads last night's sleep from Apple Health and adds the minutes to the headache record. Health data stays on your iPhone: it is not written to Apple Health, not uploaded, not synced to iCloud, not used for advertising and never sold or shared. You can turn access off at any time in iPhone Settings.
Weather data and location
Weather data is off until you turn it on. When it is on, each time you log a headache and each time you open or return to the app, Hushday asks iOS for your approximate (city-level) location and sends it to Apple Weather (WeatherKit) to look up the current air pressure and the forecast for the next 10 days. Hushday uses this for the pressure saved with a headache, the pressure chart and the pressure alert. Your location is not stored by Hushday; only the air pressure numbers are saved with the headache record. Apple's handling of the request is described in Apple's privacy policy. You can turn weather data off in Hushday's settings, or turn off location access in iPhone Settings, at any time.
Reports and CSV
When you share a PDF report or a CSV file, the app hands the file to the share sheet. Where it goes (for example AirDrop, Mail, Messages or a printer) is your choice and is handled by those services, not by us.
Notifications
Reminders (such as "add details?" and the trial reminder) and pressure notes are scheduled on your device. Their content is not sent to us.
Purchases
Subscriptions are processed by Apple (App Store). We do not receive your payment details.
No ads, no tracking
Hushday shows no ads, does not track you and has no analytics.
Not a medical device
Hushday records what you enter. It is not a medical device and does not replace a doctor.
Children
The app is not directed at children under 13 and we do not knowingly collect personal information from children.
Changes
If this policy changes, the new version will be posted on this page with a new date.
Contact
Questions: methodhelm@outlook.com
隱私權政策
最後更新：2026 年 10 月 18 日
Hushday（以下稱「本 App」）是由台灣的獨立開發者製作的頭痛日記 App。本政策說明本 App 會處理哪些資訊。本 App 沒有帳號系統，我們也沒有接收你資料的伺服器。
你的頭痛紀錄
頭痛的時間、程度、部位、症狀、誘因、藥、備註與設定都儲存在你的 iPhone。若你的 Apple 帳號開啟 iCloud，紀錄也會存在你自己的 iCloud（iCloud 鍵值儲存），讓你的裝置共用。這份副本由 Apple 保存，我們無法讀取。刪除 App 時，這支 iPhone 上的資料會一併刪除。
Apple 健康
你允許後，Hushday 會從 Apple 健康讀取昨晚的睡眠，把分鐘數加到頭痛紀錄。健康資料只留在你的 iPhone：不寫入 Apple 健康、不上傳、不同步到 iCloud、不用於廣告，也不會出售或分享。你隨時可以在 iPhone「設定」關閉。
天氣資料與位置
天氣資料預設關閉。你開啟後，每次記錄頭痛、每次打開或回到 App 時，Hushday 會向 iOS 取得大約（城市層級）的位置，傳給 Apple 天氣（WeatherKit），查詢目前的氣壓和未來 10 天的預報，用在頭痛紀錄的氣壓、氣壓圖和氣壓提醒。Hushday 不會儲存你的位置，只把氣壓數字存在該筆頭痛紀錄。Apple 如何處理此查詢，請見 Apple 的隱私權政策。你隨時可以在 Hushday 的設定關閉天氣資料，或在 iPhone「設定」關閉位置權限。
報告與 CSV
你分享 PDF 報告或 CSV 檔時，App 會把檔案交給系統的分享選單。檔案要送到哪裡（例如 AirDrop、郵件、訊息或印表機）由你決定，並由這些服務處理，不經過我們。
通知
提醒（例如「要補上細節嗎？」和試用到期提醒）與氣壓提醒都在你的裝置上排程，內容不會傳送給我們。
購買
訂閱由 Apple（App Store）處理，我們不會取得你的付款資料。
沒有廣告，也不追蹤
Hushday 沒有廣告、不追蹤你，也沒有使用分析工具。
不是醫療器材
Hushday 只記錄你輸入的內容，不是醫療器材，不能取代醫師。
兒童
本 App 並非以 13 歲以下兒童為對象，我們不會在知情的情況下收集兒童的個人資料。
政策變更
本政策如有變更，會在此頁公布新版本並更新日期。