隐私政策
Privacy Policy
更新日期：2026 年 10 月 14 日
一、我们收集的信息
测量标记是一款本地优先的测量与标注工具，我们不会收集、上传或存储您的任何项目数据。您在应用中创建的项目、标注、照片、语音与视频均仅保存在您的设备本地。
二、信息的使用
您在本机保存的内容仅用于在应用内展示、编辑与导出，不会用于任何其他用途，也不会与我们或第三方共享。
三、信息的存储
项目数据以 JSON 文件、照片与媒体文件的形式存储在设备上的应用沙盒目录（Documents）中。卸载应用即会一并删除这些数据。
四、权限用途
相机：用于拍摄现场照片与视频，作为测量标注的底图。
相册：用于导入照片 / 视频进行标注，以及将导出结果保存回相册。
麦克风：用于录制语音标注。
以上权限均仅在您主动使用时调用，应用不会在后台采集。
五、兑换码与会员服务
当您使用兑换码功能时，应用会将您输入的兑换码与一个匿名的设备标识发送到我们的服务器，仅用于核销该兑换码并为您解锁会员功能。该设备标识由系统随机生成，不含您的姓名、手机号或任何个人身份信息，也不会用于追踪您在应用之外的行为。除此之外，应用不会向服务器上传您的任何项目、标注或媒体内容。
六、信息的共享
除上述兑换码核销所必需的最少信息外，我们不会向第三方共享、转让或出售您的信息。
七、您的权利
您可以随时删除单个项目（在项目列表长按选择删除），或在「我的 → 退出登录」中一次性清除本机全部项目与媒体数据。
八、儿童隐私
本应用不面向 13 周岁以下儿童，我们不会有意收集儿童的任何个人信息。
九、政策更新
若本政策发生变更，我们会在本页面发布最新版本。继续使用本应用即视为您接受更新后的政策。
十、联系我们
如您对本隐私政策有任何疑问，欢迎通过应用内「我的 → 联系我们」页面或邮件与我们联系。
Last updated: October 14, 2026
1. Information We Collect
MeasureMark is a local-first measuring and annotation tool. We do not collect, upload, or store any of your project data. The projects, annotations, photos, voice notes, and videos you create in the app are stored only on your own device.
2. How We Use Information
Content saved on your device is used solely to display, edit, and export within the app. It is not used for any other purpose and is never shared with us or any third party.
3. Data Storage
Project data is stored as JSON files, photos, and media files in the app's sandbox directory (Documents) on your device. Uninstalling the app deletes this data as well.
4. Permissions
Camera: used to capture on-site photos and videos as the base image for measurement annotations.
Photos: used to import photos/videos for annotation and to save exported results back to your library.
Microphone: used to record voice annotations.
All permissions are invoked only when you actively use the corresponding feature. The app never collects data in the background.
5. Redeem Codes and Membership
When you use the redeem-code feature, the app sends the code you entered and an anonymous device identifier to our server, solely to redeem the code and unlock membership for you. The device identifier is randomly generated by the system and contains no name, phone number, or other personally identifying information, and is not used to track your activity outside the app. Aside from this, the app does not upload any of your projects, annotations, or media to any server.
6. Information Sharing
Except for the minimal information necessary for the redeem-code verification described above, we do not share, transfer, or sell your information to any third party.
7. Your Rights
You may delete any single project at any time (long-press a project in the list and choose Delete), or clear all projects and media on your device at once via "Me → Sign out".
8. Children's Privacy
This app is not intended for children under 13, and we do not knowingly collect any personal information from children.
9. Changes to This Policy
If this policy changes, we will publish the latest version on this page. Continued use of the app constitutes acceptance of the updated policy.
10. Contact Us
If you have any questions about this privacy policy, please contact us through the in-app "Me → Contact Us" page or by email.