Need help? Find answers below, or email us — we usually reply within 1–2 business days. 需要帮助？先看看下面的常见问题，或直接邮件联系我们，通常 1–2 个工作日内回复。
Muf is an AI skincare app: it analyzes your skin, builds a routine that adapts to you, answers skincare questions, and scans product ingredients for conflicts and skin-type fit.沐肤是一款 AI 护肤 App：帮你测肤、生成随你自适应的护肤方案、解答护肤疑问，还能拍成分表做成分检测。
Yes. Your streaks, goals, cycle logs, lifestyle logs and progress photos are stored only on your device. Skin-test results sync to your private account. See our Privacy Policy.安全。你的打卡、目标、周期记录、生活方式记录与进展照片仅存在本机；测肤结果同步到你的私有账号。详见隐私政策。
No. Muf provides general skincare guidance for cosmetic purposes only. For persistent or severe skin conditions, please consult a dermatologist.不是。沐肤仅提供美容护肤方面的通用建议，非医学诊断。若有持续或严重的皮肤问题，请咨询皮肤科医生。
The camera is used for skin analysis and on-device ingredient scanning. Optional location is used only to fetch local UV and humidity for daily tips — it is never stored or uploaded. You can decline either at any time.相机用于测肤与成分检测；可选的定位仅用于获取本地紫外线与湿度以给出当日建议，绝不存储或上传。你可随时拒绝。
Subscriptions are handled by the App Store. Open iPhone Settings → tap your name → Subscriptions → Muf, then manage or cancel there.订阅由 App Store 管理。打开 iPhone「设置」→ 点你的名字 →「订阅」→ 找到「沐肤」，即可管理或取消。
In the app, go to Me → Settings → Privacy & Data → “Clear on-device data”. To remove account data, email us.在 App 里进入「我的 → 设置 → 隐私与数据 →『清除本机数据』」。如需删除账号数据，请邮件联系我们。
iPhone running iOS 17 or later.运行 iOS 17 及以上的 iPhone。
Email ketaiyun@gmail.com with your device model, iOS version and a short description (screenshots help).邮件 ketaiyun@gmail.com，附上设备型号、iOS 版本与简要描述（有截图更好）。