Privacy Policy

1. Information we process

When you create an account, sign in, and use the service, we process the basic information required to operate the product, such as your email address, nickname, account identifiers, language preferences, and settings.

When you actively use reading and organization features, we also process the content you create or upload, including book information, excerpts, recordings, images, notes, writing documents, project materials, and derived structured outputs such as summaries, tags, todos, and AI-generated results.

• Account information: email address, nickname, authentication status, and language preferences.
• Content data: book metadata, excerpts, reflections, questions, drafts, and research projects.
• Media data: audio recordings, photos, uploaded images, and related processing results that you choose to submit.
• Device and operational data: basic logs, error reports, and usage information needed to keep the service stable and secure.

2. Why we use this information

We use this information to provide and maintain core product functions, including authentication, cross-device sync, reading record storage, AI processing, Studio presentation, troubleshooting, and abuse prevention.

If you enable microphone, camera, or notification features on iOS, those permissions are used only for the related product functionality.

• Store your reading records and sync them across iPhone and Studio.
• Run transcription, organization, summarization, retrieval, and writing assistance on content you choose to submit.
• Generate reading progress, project outputs, reminders, todos, and review materials.
• Support monitoring, debugging, security protection, and basic product improvement.

3. AI and third-party processing

Text, audio, images, and project materials that you actively submit into AI workflows may be sent to our model or infrastructure providers to complete transcription, understanding, retrieval, summarization, and generation tasks.

We do not sell your personal information for advertising purposes. Third-party services process data only to provide product capabilities, storage, authentication, billing, or infrastructure support.

4. Retention and control

Your data may be stored in the databases, object storage systems, and supporting infrastructure we use to operate the product. Retention depends on service needs, your deletion actions, and applicable legal requirements.

You can delete some content inside the product. If you need help deleting your account or making a broader request, contact us through the support page.

5. Permissions

Camera access is used for book cover capture and related images. Microphone access is used for reading voice capture. Notifications are used for reading timers, reminders, and todo alerts.

If you deny these permissions, the rest of the app may still work, but the features that depend on those permissions will be unavailable.

6. Children

The service is not designed specifically for children below the minimum legal age to use it independently. If you believe a child provided personal information without proper permission, contact us.

7. Updates to this policy

If this policy changes materially, we may provide notice through the website, in-app surfaces, or other reasonable means. Continued use of the service generally means you accept the updated policy.