中文
开发者：Xiaoxiao Apps（小小应用）
「留证鸭」是一款租房留证与押金保卫工具。我们高度重视你的隐私，本应用遵循「纯本地、不收集」原则：
- 数据全部存储在设备本地。你拍摄的照片、视频、水表电表读数、物品清单、交接签名等全部数据仅保存在你自己的设备上，不会上传到任何服务器，开发者无法访问你的数据。卸载应用将删除全部本地数据。
- 我们不收集任何个人数据。不收集姓名、邮箱、设备标识符等任何个人信息。
- 位置信息仅按需使用。照片定位水印功能需要你主动授权位置权限；位置信息仅用于在你拍摄的照片上加盖水印，不会记录、上传或用于其他用途，也可随时关闭。
- 无第三方数据收集 SDK。本应用不集成任何分析、广告或统计类第三方 SDK，不向第三方共享任何数据，全程零广告。
- 无需注册登录。应用不设置账号体系，所有功能开箱即用。
- 内购说明：Pro 功能通过 Apple 官方内购完成（一次性买断，非订阅）。支付由 Apple 处理，我们不获取你的任何支付信息。购买记录可通过 Apple「恢复购买」找回。
- 导出与分享：PDF 证据包与备份文件均由你主动生成并自行保存；使用系统分享面板时数据仅经本机传递，我们不接触。照片的 SHA-256 指纹仅在本机计算，不上传。
- 如有任何隐私相关问题，请联系：804439847@qq.com
English
Developer: Xiaoxiao Apps
"RentCheck" is a rental evidence and deposit-protection tool. We follow a strict "local-only, zero-collection" principle:
- All data stays on your device. Photos, videos, meter readings, item checklists, and handover signatures are stored locally only and are never uploaded to any server. The developer cannot access your data. Uninstalling the app deletes all local data.
- We collect no personal data — no name, email, or device identifiers.
- Location is used only on request. The photo location-watermark feature requires your explicit permission. Location is used solely to stamp your photos, is never recorded or uploaded, and can be turned off at any time.
- No third-party data-collection SDKs. The app includes no analytics, advertising, or tracking components. Completely ad-free.
- No account required. All features work out of the box.
- In-app purchase: Pro is unlocked via an Apple one-time in-app purchase (not a subscription). Payments are processed by Apple; we never receive your payment details. Purchases can be restored via "Restore Purchases".
- Export & share: PDF evidence packs and backups are generated and saved by you on purpose. SHA-256 fingerprints of photos are computed on-device only and never uploaded.
- Privacy questions? Contact: 804439847@qq.com