隐私政策 / Privacy Policy

1. 我们处理的信息 / Information we process

无需登录也可使用核心功能。旅行预算、分类支出和本地设置默认保存在你的设备上，不会因此功能自动上传。

可选账号。如果你选择注册，我们会处理用户名、经过安全哈希的密码以及登录令牌。登录后，本位货币、关注列表、排序偏好和你主动保存的换算历史可以与账号同步。

网络与运维信息。应用会连接汇率 API 以获取最新数据。服务器可能为安全、防滥用和故障排查处理常规技术日志，例如 IP 地址、请求时间和客户端信息。

Core features do not require an account. Trip budgets and categorized expenses remain on your device by default. If you create an optional account, we process your username, a securely hashed password, and authentication tokens. Signed-in users may sync base-currency settings, favorites, ordering preferences, and conversion records they choose to save. The app contacts our rate API, whose operational logs may process standard network information for security and reliability.

2. 使用目的 / How information is used

• 提供汇率、换算、同步和账号功能。
• 保护服务安全、诊断故障并防止滥用。
• 回复你主动发送的客服请求。

We use information only to provide account and sync features, deliver exchange-rate functionality, protect service reliability, and respond to support requests.

3. 不做的事 / What we do not do

我们不销售个人数据，不使用跨 App 广告跟踪，不收集通讯录、精确位置、健康数据、银行账户或支付卡号。

We do not sell personal data, perform cross-app advertising tracking, or collect contacts, precise location, health data, bank-account details, or payment-card numbers.

4. 保留、删除与安全 / Retention, deletion, and security

账号数据保留到你删除账号或不再为提供服务所必需。你可在 App 的“设置 → 账号”中删除账号。卸载 App 可移除其本地存储内容。我们采用 HTTPS、密码哈希和访问控制等合理措施，但任何系统都无法保证绝对安全。

Account data is kept until you delete your account or it is no longer needed to provide the service. Account deletion is available in Settings. Uninstalling the app removes its local storage. We use HTTPS, password hashing, and access controls, while recognizing that no system can guarantee absolute security.

5. 联系我们 / Contact

如对隐私有疑问或希望行使相关权利，请发送邮件至 [email protected]。

For privacy questions or requests, email [email protected].