测量与指导

5 秒准备期间不采集；开始提示后测量 30 秒，结束后可查看完整曲线。指导页默认演示有支撑静坐：手机背面贴近左胸心脏上方，屏幕朝外，双手扶稳长边，肘部有支撑，不压迫胸口。底层仍支持静息仰卧，不需要切换姿势选项。请求采样率不保证设备实际达到该频率。胸部运动曲线不是心电图，本 App 不能测量高压或低压。

数据导出与 AI

设置中可导出或删除全部本机记录；单条记录详情中可导出该次结果、原始传感器数据和回放波形。导出健康数据时请谨慎选择接收方。打包期间会显示操作中状态，请勿重复发起导出。

进入分析不会自动发送。明确同意新版共享范围并主动发送后，新关联测量对话的首轮请求会附必要结果及可用的处理、抽样胸部运动波形，不是全部多轴 IMU 原始数据。首轮成功保存后，后续追问仅附结果和预算内聊天，不重复附波形数组；重开会话不重置首轮。首轮失败重试或容灾路线可能再次传输同一上下文。缺失波形时不伪造。具体接收方、数据范围及保留边界见隐私政策。

每日 30 次指每安装身份成功的完整有效 AI 回复，追问也计数。重置时间按服务端 UTC 日界线确定，界面转换为本地时间。本机测量没有次数限制。首页的休息、活动、情绪、饮食建议来自已保存的实际 AI 回复，打开首页不会额外调用 AI。

建议的安全边界

AI 生成内容是一般生活参考，不是医学建议。具体食物需核对过敏原、个人饮食限制及食物与药物相互作用；不能从测量推断没有过敏或用药禁忌，也不保证已经排除所有禁忌。不确定时请咨询医生、药师或营养专业人员，不要自行依据 AI 停药、换药或改变剂量。

反馈和隐私请求

请提供 App 版本、iPhone 型号、系统版本和可复现步骤；不要主动发送健康导出、API 密钥或身份证明。我们需要数据时会另行说明范围并征求同意。需要服务器身份删除或撤回数据共享帮助时，请通过上述邮箱联系。该邮箱不是急救通道。

Measurement and guidance

Preparation does not record. After the start cue, measure for 30 seconds and replay the full curve afterward. The guide defaults to supported sitting: place the back of the phone close against the left chest above the heart, screen facing out, hold the long edges with both hands and support your elbows without pressing on the chest. Resting supine measurement remains supported automatically; no posture selector is needed. Actual sampling depends on the device. The trace is chest movement, not ECG; the app does not measure systolic or diastolic blood pressure.

Export and AI

Export or delete all local records in Settings. An individual record's detail page also exports its results, raw sensor data and replay waveform. Choose recipients carefully when sharing health exports. A busy state is shown during packaging; do not start duplicate exports.

Analysis never auto-sends. After explicit consent to the updated sharing scope and an active send, the first request in a new measurement-linked conversation includes necessary results and an available processed, sampled chest-motion waveform, not all raw multi-axis IMU data. After the first successful reply is saved, follow-ups include results and budgeted chat without repeating waveform arrays. Reopening a chat does not reset the initial state. Initial retries or route failover may transmit the same context again. Missing waveform is not invented. See the Privacy Policy for recipients, exact scope and retention boundaries.

The allowance is thirty complete, usable AI replies per installation per UTC day; follow-ups count. The app displays the corresponding local reset time. On-device measurement remains unlimited. Home's rest, activity, emotional-well-being and food suggestions come from actual saved AI replies; opening Home does not make another AI request.

Suggestion safety

AI-generated content is general lifestyle information, not medical advice. Check specific foods for allergens, personal dietary restrictions and food/medicine interactions. Measurements cannot establish the absence of allergies or contraindications, and the app does not guarantee that every contraindication has been excluded. Consult an appropriate clinician, pharmacist or nutrition professional when uncertain. Do not stop, substitute or adjust medication based on AI.

Feedback and privacy requests

Contact support with the app version, iPhone model, iOS version and reproduction steps. Do not email health exports, identity documents or API keys unless specifically requested with your consent. Use the address above for help with server-identity deletion or sharing withdrawal. This is not an emergency service.