Privacy Policy
FTP Client is an FTP / FTPS / SFTP file-transfer client. It connects only to the servers you choose. The developer does not operate any server for this app, and does not receive or have access to any of your data.
1. Data we collect
The developer receives no data. The app contains no analytics, crash-reporting, advertising, or tracking libraries, it does not create user accounts, and nothing is sent to the developer. The developer does not sell or share any personal or device data.
To connect, the app sends the information you enter (server address, username, password, and paths) and the files you choose to transfer to the server you specify. Because this information leaves your device, it counts as “collected” under Google Play's Data safety definitions, and is declared there as follows:
- What: whatever you type into the connection fields. Depending on what you enter (for example, if a username is a phone number or an email address), this may include personal information such as a phone number.
- Why: app functionality only, to log in to your server and transfer files. It is never used for analytics, advertising, or any other purpose.
- Optional: you decide what to enter; the app never requires a phone number or other personal details.
- Not shared: it is sent only to the server you chose, at your request, and is not given to the developer or any other third party.
- Encryption: FTPS and SFTP encrypt it in transit; plain FTP does not (see section 3).
2. Data stored on your device
The app stores the following locally on your phone only. It is never uploaded to the developer or to any third party, and it is removed when you uninstall the app or clear its data.
- Site settings — server name, host address, port, protocol, username, and (only if you enable “Remember password”) the password, plus options such as character encoding and transfer mode. These are kept in the app's private storage (SharedPreferences).
- SSH host keys — for SFTP connections, the server's host key fingerprint is remembered on first connect (trust on first use) so later connections can be verified.
- App preferences — such as the interface language and last-used folders.
Credentials are stored in plain text in the app's private storage, in the same way desktop clients such as FileZilla store their site manager. If you prefer not to keep them, turn off “Remember password” or use Quick Connect.
3. Network connections
The app makes network connections only to the FTP / FTPS / SFTP servers whose addresses you enter yourself. Your credentials and files are sent to those servers so that the transfer can happen — that is the purpose of the app. The developer has no access to those servers or to anything sent over those connections.
Plain FTP is an unencrypted protocol: your username, password, and file contents travel in clear text and can be read by anyone on the network path. Use FTPS or SFTP outside a network you trust. How a server you connect to handles your data is governed by that server operator's own policy, not by this one.
4. Permissions and why they are needed
- Internet / network state — to connect to the servers you configure.
- All files access (MANAGE_EXTERNAL_STORAGE) / storage — to let you browse your phone's files, upload any file you pick, and save downloads to any folder you choose. Files are read or written only for the transfers you start; they are never sent anywhere except to the server you selected.
- Foreground service & wake lock — to keep transfers running when the app is in the background or the screen is off.
- Notifications — to show transfer progress and let you cancel transfers.
5. Children
The app is a general-purpose utility and is not directed to children. The developer does not knowingly receive data from anyone, including children under 13.
6. Your choices
Because nothing is sent to the developer, there is no data held by the developer to access, correct, export, or delete. Data held by a server you connect to is managed by that server's operator. You can delete everything the app stores at any time by deleting individual sites in the app, or via Android's Settings → Apps → FTP Client → Storage → Clear data, or by uninstalling the app.
7. Changes to this policy
If this policy changes, the updated version will be posted at this same address with a new “Last updated” date.
8. Contact
Questions about this policy: bittyferrari@gmail.com
隱私權政策
FTP Client 是一款 FTP / FTPS / SFTP 檔案傳輸用戶端，只會連線到您自己指定的伺服器。 開發者並未為本 App 架設任何伺服器，也不會接收或取得您的任何資料。
一、我們蒐集的資料
開發者不會收到任何資料。本 App 未內含任何分析、當機回報、廣告或追蹤函式庫， 不需要註冊帳號，也不會把任何資料傳給開發者。開發者不會販售或分享任何個人或裝置資料。
為了連線，App 會把您輸入的資訊（伺服器位址、帳號、密碼、路徑）以及您選擇傳輸的檔案， 送到您自己指定的伺服器。由於這些資訊會離開您的裝置，依 Google Play「資料安全性」的定義 屬於「收集」，並已在該表單中如下聲明：
- 內容：您在連線欄位中輸入的任何內容。視您輸入的內容而定（例如帳號是電話號碼 或電子郵件地址），可能包含電話號碼等個人資訊。
- 用途：僅供 App 功能使用，也就是登入您的伺服器並傳輸檔案，不會用於分析、 廣告或其他任何用途。
- 選填：要輸入什麼由您決定，App 不會要求提供電話號碼或其他個人資訊。
- 不分享：只會依您的操作送到您選定的伺服器，不會提供給開發者或其他第三方。
- 加密：FTPS 與 SFTP 在傳輸中會加密，純 FTP 不會（見第三節）。
二、儲存在您裝置上的資料
以下資料僅儲存在您的手機本機，不會上傳給開發者或任何第三方；解除安裝或清除 App 資料後即一併移除。
- 站台設定：站台名稱、主機位址、連接埠、協定、使用者名稱，以及（僅在您勾選 「記住密碼」時）密碼，另有編碼、傳輸模式等選項。這些資料存放於 App 的私有儲存空間 （SharedPreferences）。
- SSH host key：使用 SFTP 時，第一次連線會記下伺服器的 host key 指紋 （TOFU，首次信任），供之後連線比對驗證。
- App 偏好設定：例如介面語言、最近使用的目錄。
帳號密碼以明文儲存在 App 私有空間，做法與 FileZilla 等桌面用戶端的站台管理員相同。 若不希望留存，請關閉「記住密碼」或改用「快速連線」。
三、網路連線
本 App 只會連線到您自己輸入位址的 FTP / FTPS / SFTP 伺服器。您的帳密與檔案會傳送至 這些伺服器以完成傳輸，這正是本 App 的用途。開發者無法存取這些伺服器，也無法取得這些連線上的任何內容。
純 FTP 為未加密協定，帳號、密碼與檔案內容以明文傳輸，網路路徑上的任何人都可能讀取。 在不信任的網路環境請改用 FTPS 或 SFTP。您所連線的伺服器如何處理您的資料，依該伺服器管理者的 政策而定，不在本政策範圍內。
四、權限用途
- 網際網路／網路狀態：連線到您設定的伺服器。
- 所有檔案存取權（MANAGE_EXTERNAL_STORAGE）／儲存空間：讓您瀏覽手機檔案、 上傳您選擇的檔案，並將下載內容存到您指定的任意資料夾。檔案僅在您發起的傳輸中被讀寫， 除了您選定的伺服器外不會送往任何地方。
- 前景服務與喚醒鎖定：讓傳輸在切換到背景或關閉螢幕時仍可繼續。
- 通知：顯示傳輸進度並提供取消操作。
五、兒童
本 App 為一般工具類應用，非以兒童為對象。開發者不會刻意接收任何人的資料，包含 13 歲以下兒童。
六、您的選擇
由於沒有任何資料會傳給開發者，開發者端不存在可供查詢、更正、匯出或刪除的資料。 您所連線的伺服器上的資料，由該伺服器的管理者負責管理。 您隨時可以在 App 內刪除個別站台，或透過 Android 的 設定 → 應用程式 → FTP Client → 儲存空間 → 清除資料，或直接解除安裝， 清除本 App 儲存的所有內容。
七、政策變更
本政策如有修訂，將於同一網址公布更新版本，並更新「最後更新」日期。
八、聯絡方式
如對本政策有任何疑問：bittyferrari@gmail.com