Msats Privacy Policy

Last updated: July 16, 2026

Information we collect and use

Account information: when you sign in with Apple, we receive only the anonymous Apple user identifier and the nickname you authorize. We never receive your password.
Health and fitness data: workouts, runs, heart-rate readings received from Apple Watch, weight, diet, water logs and HealthKit data stay on your device and in your private iCloud database. We do not upload this data to our server, sell it, or use it for advertising.
Food AI content: when you choose food photo recognition, we send the compressed food photo and optional voice-note text you provide to the Msats backend, then to our AI service providers, Alibaba Cloud DashScope/Qwen and ByteDance Doubao, to estimate calories and macronutrients.
Posture and face/body data: when you choose AI posture analysis, we send the body photos you select and an on-device Vision skeleton-angle summary to the Msats backend, then to Alibaba Cloud DashScope/Qwen or ByteDance Doubao to generate a posture report. These photos may include your face or body features.
AI plan and chat text: when you ask Msats to generate or revise a meal plan, training plan, or chat response, the text you enter and the current plan context are sent to the Msats backend and then to Alibaba Cloud DashScope/Qwen or ByteDance Doubao to generate the requested result.
Usage counters: our backend stores anonymous user identifiers and product-interaction counters, such as AI quota usage, for abuse prevention, subscription entitlement checks and quota management.

Third-party AI processing

Msats uses Alibaba Cloud DashScope/Qwen and ByteDance Doubao (Volcengine Ark) as third-party AI service providers. The app explains what will be sent and asks for permission before sending photos or text to AI processing.

The data sent for AI features is used only to generate the requested result. It is not used by Msats for advertising, identity recognition, or model training. We do not permit the AI provider to use this content for advertising or model training, and the provider is expected to protect the data with safeguards comparable to those used for the Msats service.

Face/body data details

What face or body data is collected?

Only the body photos that you actively select for posture analysis are sent. These images may incidentally contain your face. Msats also sends an on-device Vision skeleton-angle summary such as shoulder, hip or side-view posture angles.

How is it used?

The photos and angle summary are used only to generate a posture assessment, corrective exercise suggestions and a posture score. Msats does not use this data to identify you, authenticate you, build a biometric profile, track you, advertise to you, or train AI models.

Is it shared with third parties?

Yes, only for the AI feature you request: the data is sent through the Msats backend to Alibaba Cloud DashScope/Qwen or ByteDance Doubao for processing. It is not shared with advertisers, data brokers, social networks or analytics providers.

Where is it stored and how long is it retained?

The original photos are processed transiently in the request path and are not saved to the Msats server database or file storage. After the AI provider returns the result, Msats does not retain the submitted photos or text. The generated posture report is stored locally on your device unless you delete app data or delete your account.

Storage and security

Local data is protected by the iOS sandbox. iCloud sync uses your own private iCloud account, which Msats cannot access. Our server keeps only anonymous identifiers, session tokens and usage counters needed to operate subscriptions, AI limits and abuse protection.

Subscriptions and payments

Subscriptions are processed and billed by the Apple App Store. Msats does not receive or store your payment card information.

Your choices and rights

You can decline AI processing. If you decline, the app will not send the relevant photo or text to the third-party AI service. You can delete your account in the app under Profile -> Settings; local app data is erased on the device. For privacy questions or deletion requests, contact frankdoug87@gmail.com.

Msats 隐私政策

更新日期：2026 年 7 月 16 日

我们收集和使用的信息

账号信息：你使用 Apple 登录时，我们仅接收 Apple 签发的匿名用户标识，以及你授权的昵称。我们不会获取你的密码。
健康与运动数据：训练记录、跑步数据、Apple Watch 回传的心率、体重、饮食饮水和 HealthKit 数据保存在你的设备本地及你的 iCloud 私有数据库。我们不会把这些数据上传到服务器、出售或用于广告。
食物 AI 内容：当你主动使用食物拍照识别时，我们会把压缩后的食物照片和你主动提供的语音说明文字发送到 Msats 后端，再转发给 AI 服务商阿里云通义千问（DashScope/Qwen）或字节跳动豆包，用于估算热量和营养素。
体态与脸部/身体数据：当你主动使用 AI 体态分析时，我们会把你选择的身体照片和本机 Vision 计算出的骨骼角度摘要发送到 Msats 后端，再转发给阿里云通义千问（DashScope/Qwen）或字节跳动豆包生成体态报告。这些照片可能包含你的脸部或身体特征。
AI 计划与聊天文字：当你要求 Msats 生成或修改饮食计划、训练计划或聊天回复时，你输入的文字和当前计划上下文会发送到 Msats 后端，再转发给阿里云通义千问（DashScope/Qwen）或字节跳动豆包生成结果。
用量计数：服务器会保存匿名用户标识和产品交互计数，例如 AI 调用额度，用于防滥用、订阅权益校验和额度管理。

第三方 AI 处理

Msats 使用阿里云通义千问（DashScope/Qwen）与字节跳动豆包（火山方舟）作为第三方 AI 服务商。App 会在发送照片或文字进行 AI 处理前，说明将发送的数据并征求你的许可。

发送给 AI 的数据仅用于生成你请求的结果。Msats 不会将这些内容用于广告、身份识别或模型训练。我们不允许 AI 服务商将这些内容用于广告或模型训练，并要求其按照与 Msats 服务相当的安全保护措施处理数据。

脸部/身体数据说明

收集什么脸部或身体数据？

仅收集你主动选择用于体态分析的身体照片。这些图片可能附带包含你的脸部。Msats 还会发送本机 Vision 计算出的骨骼角度摘要，例如肩部、髋部或侧面体态角度。

用途是什么？

照片和角度摘要仅用于生成体态评估、矫正训练建议和体态评分。Msats 不会用这些数据识别身份、认证身份、建立生物识别档案、追踪你、投放广告或训练 AI 模型。

是否会分享给第三方？

会，但仅限你请求的 AI 功能：数据会经由 Msats 后端发送给阿里云通义千问（DashScope/Qwen）或字节跳动豆包处理。我们不会将这些数据分享给广告商、数据经纪商、社交网络或分析服务商。

存储在哪里，保留多久？

原始照片只在请求处理链路中短暂处理，不会保存到 Msats 服务器数据库或文件存储中。AI 服务返回结果后，Msats 不保留你提交的照片或文字。生成的体态报告保存在你的设备本地，除非你删除 App 数据或注销账号。

数据存储与安全

本地数据由 iOS 沙盒保护；iCloud 同步经由你本人的 iCloud 私有账户完成，Msats 无法访问。服务器仅保存运行订阅权益、AI 额度和防滥用所需的匿名标识、会话令牌与用量计数。

订阅与支付

会员订阅由 Apple App Store 处理与扣费，Msats 不接收或保存你的银行卡信息。

你的选择和权利

你可以拒绝 AI 处理；拒绝后，App 不会把相关照片或文字发送给第三方 AI 服务。你可在 App 内「自己 -> 设置」注销账号，本机 App 数据会被清除。如需协助或有任何隐私问题，请联系：frankdoug87@gmail.com。