This policy applies to Dayouda (Pally), operated by Suzhou Dayouda Health Technology Co., Ltd. Contact: hanbo@dayouda.cn. We do not sell personal information, track people across apps, or use personal or health data for third-party advertising.
Depending on the features you use, we may process your phone number, SMS verification result, Sign in with Apple identifier, nickname and avatar; guest or installation identifier, push token and necessary security logs; age, sex, height, weight, body measurements, goals and activity habits; and food, water, recipe, workout, menstrual, photo, speech-transcript, AI-chat and buddy-interaction data. Camera, photos, microphone, speech recognition and notification access are requested only for relevant features.
We use information to create and secure accounts; save and sync records; calculate calorie and nutrition goals; show trends; provide AI results you request; enable buddy sharing and reminders; administer membership, support and appeals; troubleshoot and prevent abuse. We collect it through app inputs, authorized system interfaces and actions you initiate. Refusing an optional permission does not disable unrelated basic features.
Health, menstrual, body-measurement, food and workout records may be sensitive. We process them only where necessary for health management, workout logging, recovery analysis and AI features you request, based on feature notices, system authorization or separate AI consent. Refusal or withdrawal may disable that feature but not unrelated features.
With item-by-item authorization, we may read active energy, steps, workouts and routes, heart rate, HRV, resting heart rate, sleep, respiratory rate, blood oxygen, weight, height and menstrual data. We may write weight, water, dietary energy and nutrients, workouts and active energy you log. Uses include health trends, recovery estimates and activity-credit calculations. Manage access in the Health app. We do not sell this data or use it for advertising, marketing or unrelated data mining.
Only after separate consent and when you request an AI feature do we send necessary data to Volcengine Doubao, such as meal photos or text, AI chat, and required age, height, weight, goals, food, workout, step and sleep summaries. We do not send phone numbers, Apple IDs or complete raw HealthKit records. The data is used for food recognition, meal plans, workout plans, chat and reviews, not advertising. You may withdraw AI consent and continue using non-AI features.
Tencent Cloud CloudBase and object storage provide China-based accounts, databases, cloud functions, temporary image processing and security operations. Apple provides sign-in, HealthKit, notifications, speech recognition and App Store transactions. When you use voice input, audio is handled by Apple's system speech-recognition service; we receive the transcript but do not store the original recording on our servers. Providers process data only as needed for their function and under contractual and legal security duties. Apple independently processes Apple Account, permission and payment information; we do not receive bank-card details.
Buddy features are not a public feed. Only after both users connect and you enable specific items can the other person see the relevant nickname, food or workout status. You may turn sharing off, disconnect, report or block at any time.
When an AI feature fails, our servers automatically record your account identifier, the feature that failed, an error code and the time, so we can find and fix the problem. We do not keep the original error text. We keep only an unreadable fault fingerprint, used to tell how often the same fault occurs. These records are kept for at most 90 days and are deleted automatically when they expire, and also when you delete your account. We don't use them to build user profiles, and never for tracking or advertising. The app also keeps a separate troubleshooting log on your phone only; it leaves your device solely when you choose to export and send it to us, and you can clear it any time under Profile → Clear diagnostic log.
Accounts and cloud records are primarily stored in mainland China. Saved records are generally kept until you delete the record or account. Meal images are scheduled for deletion after recognition; some textual meal descriptions and results may be cached for consistency and to avoid repeated processing. Membership, security and appeal records are retained as needed for contracts, security and legal duties. Information is deleted or anonymized when its purpose, cache cycle or legal period ends. Data from users outside mainland China is transferred there for processing.
You may review and correct records, manage permissions and buddy sharing, withdraw AI consent, and delete your account in the app. You may email us to request access, a copy, correction, completion or deletion, withdraw consent or request an explanation. We may verify identity and will respond within the period required by applicable law.
Deletion ends sign-in and buddy links and deletes or anonymizes linked data no longer needed. Required transaction, security, audit or dispute records may be retained only for those purposes until their period ends. Data written to Apple Health must be managed separately in the Health app; account deletion does not remove Apple Health records.
We use HTTPS, token validation, access controls, account isolation and necessary logs. No internet service is absolutely secure. If an incident may affect your rights, we will take legally required remedial and notification steps.
This service is available only to users aged 18 or older, and we do not offer registration to anyone under 18. If we find that we have collected a minor's personal information without proper basis, we will stop processing it and delete it as required by law. A guardian may contact us by email to make a request.
Material changes to purposes, sensitive information, recipients or your rights will be highlighted and, where required, require renewed consent. Questions, complaints or appeals: hanbo@dayouda.cn or Me > Product Feedback. China app filing: 苏ICP备2026030386号-3A.