Privacy Policy for TextbookAI

Last updated: February 12, 2026

TextbookAI (“we”, “our”, or “the app”) is operated by Dalblas. This policy explains how we collect, use, and protect your information.

Information We Collect

Account information: Email address and display name when you create an account (via email/password or Google Sign-In). Uploaded documents: PDF files you upload for AI-powered chat. These are processed by our backend servers to extract text and generate AI responses. Chat messages: Your conversations with the AI assistant, stored to maintain chat history. Usage data: Basic analytics such as number of uploads and subscription tier. How We Use Your Information

To provide the core service: parsing your PDFs, generating AI-powered responses, and maintaining your chat history. To manage your account and subscription. We do not sell your personal data to third parties. Data Storage and Security

Account data and chat history are stored in Google Firebase (Firestore). Document text chunks and embeddings are stored in Qdrant Cloud (vector database). PDF files are processed in memory and are not permanently stored on our servers. All data transmission uses HTTPS encryption. Third-Party Services

Google Firebase — Authentication and data storage Google Gemini API — AI text generation and embeddings Qdrant Cloud — Vector search database RevenueCat — Subscription management Data Deletion You can delete your account and all associated data from within the app’s Settings screen. Deleting a document removes its data from our vector database.

Children’s Privacy TextbookAI is not intended for children under 13. We do not knowingly collect data from children under 13.

Contact If you have questions about this privacy policy, contact us at: [email protected]