Dorsal Fin · 背鳍记账
最后更新 / Last updated: 2026年5月 / May 2026
1. 财务记录数据（仅存储在您的设备本地）
本应用在您的设备本地存储财务数据，包括：
所有财务数据均经过 AES-256-CBC 加密后存储在您的设备上，加密密钥由操作系统安全存储（iOS/macOS: Keychain；Android: EncryptedSharedPreferences）。
2. 生物识别认证（可选）
如您启用生物识别解锁（Face ID、Touch ID 或指纹识别），相关认证数据由您的操作系统管理，我们无法访问。本应用仅在本地检验认证结果。
3. CSV 数据导入 / 导出
您可将财务数据导出为加密 CSV 文件。导出的文件完全由您控制，本应用不会将导出数据上传至任何地方。您也可导入之前备份的加密数据文件。
4. 本地通知提醒（可选）
如您开启账户到期提醒、预算警告或定期账单提醒，本应用将在您的设备上注册本地通知。仅存储您选择的提醒时间与偏好，不上传至任何服务器。通知由设备本地触发，与任何远程服务无关。
5. 广告相关数据
本应用使用 Google AdMob 展示广告。AdMob 可能收集：
您可随时在”设置 → 隐私与安全性 → 跟踪”中修改授权。
6. 应用偏好设置
语言选择、货币单位、主题设置、通知开关等偏好仅保存在本地，不上传至任何服务器。
本应用集成以下第三方服务，请参阅其各自隐私政策：
财务数据仅存储在您的本地设备中。卸载本应用将删除所有本地数据。您也可在应用内”设置 → 危险操作 → 删除所有数据”中一键清除全部记录。
本应用不针对 13 岁以下儿童，不会有意收集未成年人信息。
如本政策发生重大变更，我们将通过应用内通知告知您。
如有任何隐私相关问题，请通过以下方式联系我们：
📧 micheliafigo2888@gmail.com
a) Financial Records (stored locally on your device only)
Your financial data is stored locally on your device, including:
All financial data is encrypted with AES-256-CBC before being stored on your device. Encryption keys are managed by the operating system’s secure storage (iOS/macOS: Keychain; Android: EncryptedSharedPreferences).
b) Biometric Authentication (Optional)
If you enable biometric unlock (Face ID, Touch ID, or fingerprint), authentication data is managed entirely by your operating system and we cannot access it. This app only verifies the authentication result locally.
c) CSV Data Import / Export
You may export your financial data as an encrypted CSV file. Exported files are entirely under your control — the app never uploads exported data anywhere. You may also import previously backed-up encrypted data files.
d) Local Notification Reminders (Optional)
If you enable account expiration alerts, budget warnings, or recurring bill reminders, the app registers local notifications on your device. Only your chosen reminder times and preferences are stored locally. Notifications are triggered entirely on-device and are not connected to any remote service.
e) Advertising Data
This app uses Google AdMob to display advertisements. AdMob may collect:
You may change this permission at any time in Settings → Privacy & Security → Tracking.
f) App Preferences
Your language, currency, theme, and notification preferences are saved locally only and are never uploaded to any server.
This app integrates the following third-party service. Please refer to its privacy policy:
Financial data exists only on your device. Uninstalling the app removes all local data. You may also delete all records at any time via Settings → Danger Zone → Delete All Data within the app.
This app is not directed at children under 13 and we do not knowingly collect information from minors.
We will notify you of significant changes through an in-app notice.
For privacy inquiries, please contact us at:
📧 micheliafigo2888@gmail.com