本政策说明 IMTP（开发者 Guanhua Li）如何处理信息。应用不设账号。
摄像头
后置摄像头只用于在本机实时计算膝关节、髋关节和躯干角度。画面不保存，也不由本应用上传。
运动传感器
加速度计只用来判断手机哪一边朝上，从而把躯干角度对齐到垂直面。这些读数只在本机使用，不保存，也不上传。
保存在这台设备上的角度
你点「记下角度」之后，最近最多 8 组数字（时间、膝、髋、躯干、侧面、测量来源）会存在这台设备上。这些数字不上传。你可以在「要点」页清除读数；删除应用也会清除。
姿态识别组件
本政策适用于 IMTP 1.3.1 及后续沿用本处理方式的版本。姿态识别由随包 RTMO-s 模型（MMPose，Apache-2.0）通过 Apple Core ML 在本机完成，Apple Vision 2D 作为后备。不含 Google ML Kit、第三方分析 SDK、广告或追踪器；画面和识别结果不上传，也不保存为图像。
本应用不向开发者或第三方收集这些本机数据。Apple 系统服务和你自行启用的设备备份按 Apple 的条款处理。旧版本可能采用不同组件；本次说明对应当前版本。
IMTP 完整源码和许可证：AGPL-3.0 开源项目。第三方 SDK 保留各自条款。
不会做的事
本应用不出售个人信息，不投放广告，也不做跨应用追踪。
联系
Privacy Policy
Effective 24 October 2026. IMTP, developed by Guanhua Li, has no account.
The rear camera is used only to measure knee, hip, and trunk angles on this device. Frames are not saved and are not uploaded by this app.
Motion data is used only to tell which way the phone is held, so trunk angle can be compared with vertical. It is not saved or uploaded.
If you tap the record control, up to eight sets of numbers (time, knee, hip, trunk, side, measurement source) stay on this device. They are not uploaded. You can clear readings on the Protocol page; deleting the app also removes them.
This policy applies to IMTP 1.3.1 and later versions using the same processing approach. The bundled RTMO-s model (MMPose, Apache-2.0) runs on device through Apple Core ML, with Apple Vision 2D as fallback. No Google ML Kit, third-party analytics SDKs, ads or trackers are included. Camera images and pose results are not uploaded or saved as images.
The developer and third parties do not collect these local app data. Apple system services and device backups you enable are governed by Apple terms. Earlier versions may use different components. Complete free AGPL-3.0 application source is available; RTMO-s retains its Apache-2.0 license.
The app does not sell personal information, show ads, or track you across apps.
Contact: 2286098222@qq.com