This policy explains how YueST, operated by 杭州吟怀文化创意有限公司 (Hangzhou Yinhuai Culture and Creativity Co., Ltd.), handles information related to use of the service.
Information and purposes
For website or mini-program WeChat sign-in, WeChat Open Platform provides the application identifier, openid and, where available, unionid. We also process non-reversible session and terminal-binding digests, sign-in time, and necessary security audit events. Restricted administrators may view your nickname, avatar, status, account state and valid-session state to locate an account, handle support requests and verify entitlements. This does not grant access to private reading text or annotations, and nickname or avatar cannot replace WeChat identity verification. Reading material, parsed text, progress, entitlements, and deletion/export requests are processed to provide reading, restricted processing, security, and auditing functions.
When you submit a support ticket while signed in, we automatically associate your account support ID with the issue you write. Book text, private annotations and model output are not attached automatically.
Models, retention, and sharing
Only when you expressly start a generation task and the server-side model service is enabled, required restricted excerpts, user questions and task-relevant prior annotations are sent to the model service provider to create reading-assistance content.
The planned provider is 杭州深度求索人工智能基础技术研究有限公司 and its affiliates (DeepSeek), using a server-side API rather than an embedded mini-program SDK. API keys remain server-side and are neither collected, stored nor displayed by the mini program. We do not provide session credentials or API keys to the model provider, and do not use WeChat ID, telephone number, nickname or avatar as model input.
Access region, retention, training use and cross-border processing follow the verified production configuration, applicable terms and provider policies when actually enabled. We do not make unverified promises of no cross-border transfer, no retention or no training use. Do not submit personal data without a lawful basis, sensitive personal data, or another party's confidential information in materials, questions or annotations.
Your rights
You may request access, copy, correction, deletion, withdrawal of consent, or make a complaint. This first release is not for people under 14. Send service and rights requests to siborn2026@163.com. Material policy changes will be notified appropriately.