刪除帳號 / Delete Your Account
繁體中文
本頁面說明 byosw（Build Your Own Splitewise，分帳應用程式）的使用者帳號刪除流程，符合 Google Play 與 Apple App Store 的應用程式內帳號刪除規定。
1. 如何在 App 內刪除帳號
byosw 提供 in-app 一鍵刪除帳號的入口，無須寄信、無須客服介入。請依照以下步驟操作：
- 開啟 byosw 應用程式並登入您的帳號
- 點選底部分頁列最右側的 「帳號」 分頁
- 向下捲動至頁面底部，找到 「危險區 / Danger zone」 區塊
- 點選 「刪除帳號 / Delete account」 按鈕
- 在確認對話框中再次點選 「刪除」 確認
注意：刪除動作會立即執行且無法復原。您將自動登出，且該帳號無法再次登入。
2. 替代刪除方式（電子郵件請求）
若您因任何原因無法存取 app（例如裝置遺失），可寄信至下列地址要求刪除帳號：
- Email：[email protected]
- 主旨：刪除帳號請求 - byosw
- 內容：請註明您註冊時使用的 email 或第三方登入提供者（Google / Apple）以便驗證身份
我們會於收到請求後 7 個工作日內完成刪除作業。
3. 哪些資料會被刪除
刪除帳號時，下列個人識別資料會立即移除或匿名化：
| 資料類型 | 處理方式 |
|---|---|
| 電子郵件地址 | 立即匿名化（無法用於再次登入） |
| 顯示名稱 | 取代為「Deleted User」 |
| 第三方登入識別碼（Google sub / Apple sub） | 立即清除 |
| 密碼雜湊 | 立即清除 |
| 頭像 URL | 立即清除 |
| 推播 Token（FCM / APNs） | 立即清除（後續不再接收 byosw 推播） |
| 群組成員身份 | 自所有群組移除；若您為群組唯一管理員，系統會自動推選最早加入的其他成員接手 |
| 個人偏好（幣別、語言、主題） | 立即清除 |
4. 哪些資料會被保留（為他人會計完整性）
為了維持您所屬群組其他成員的歷史紀錄與帳目完整性，下列共享資料會保留，但您的身份會顯示為「Deleted User」（無法回溯至原帳號）：
- 您曾建立的消費紀錄：金額、幣別、消費名稱、日期會保留；建立者顯示為「Deleted User」
- 已附掛於消費紀錄的收據圖片：會隨該筆消費一併保留於物件儲存（Cloudflare R2），供群組其他成員查閱對帳；您的個人頭像圖片則會清除
- 分帳分配紀錄：您與其他成員的分帳明細會保留，作為其他成員的歷史對帳依據
- 已確認的結算紀錄：保留以維持帳目完整性
- 稽核日誌（audit logs）：依法律與合規要求保留
保留期限：無限期保留（僅在群組其他成員主動刪除該筆紀錄、或群組被刪除時才會一併移除）。
5. 我可以恢復已刪除的帳號嗎？
不行。帳號一旦刪除即無法復原，請審慎決定。若您仍希望使用 byosw，必須以新的 email 或第三方登入重新註冊一個新帳號。
6. 聯絡我們
English
This page explains how to delete your user account in byosw (Build Your Own Splitewise, a bill-splitting application), in compliance with Google Play and Apple App Store in-app account deletion requirements.
1. How to Delete Your Account In-App
byosw provides a one-tap in-app account deletion entry. No email or customer service contact required:
- Open the byosw app and sign in
- Tap the rightmost "Account" tab at the bottom
- Scroll to the bottom of the page to find the "Danger zone" section
- Tap the "Delete account" button
- Confirm again in the confirmation dialog
Warning: Deletion is immediate and irreversible. You will be signed out automatically and the account cannot sign in again.
2. Alternative Deletion Method (Email Request)
If you cannot access the app (e.g., lost device), email us to request account deletion:
- Email: [email protected]
- Subject: Account Deletion Request - byosw
- Body: Provide the email address or third-party sign-in provider (Google / Apple) used at registration, for identity verification
We will complete deletion within 7 business days of receiving the request.
3. Data That Will Be Deleted
The following personally identifiable data will be immediately removed or anonymized:
| Data Type | Action |
|---|---|
| Email address | Immediately anonymized (cannot be used to sign in again) |
| Display name | Replaced with "Deleted User" |
| Third-party sign-in identifiers (Google sub / Apple sub) | Immediately cleared |
| Password hash | Immediately cleared |
| Avatar URL | Immediately cleared |
| Push token (FCM / APNs) | Immediately cleared (no further byosw push notifications) |
| Group membership | Removed from all groups; if you are the sole admin, the system automatically promotes the earliest-joined remaining member |
| Preferences (currency, locale, theme) | Immediately cleared |
4. Data That Will Be Retained (For Other Members' Accounting Integrity)
To preserve historical records and accounting integrity for other members of groups you participated in, the following shared data will be retained, but your identity will be displayed as "Deleted User" (no link back to the original account):
- Expenses you created: amount, currency, expense name, and date are retained; creator is shown as "Deleted User"
- Receipt images already attached to expenses: retained in object storage (Cloudflare R2) together with the expense so other group members can reconcile; your profile picture is deleted
- Split allocation records: split details between you and other members are retained, so other members can still reconcile their history
- Confirmed settlements: retained for accounting integrity
- Audit logs: retained per legal and compliance requirements
Retention period: indefinite (only removed if another group member deletes the specific record, or if the entire group is deleted).
5. Can I Recover a Deleted Account?
No. Once deleted, an account cannot be restored. Please decide carefully. If you wish to use byosw again, you must register a new account with a different email or third-party sign-in.
6. Contact Us
- Email: [email protected]
- Website: https://byosw.fcreps.com
- Privacy Policy: https://byosw.fcreps.com/privacy/