Audeus vs ChatPDF

Audeus converts PDFs, documents, scans, screenshots, and other text into speech using AI voices. It supports PDF, Word (DOCX), and non-DRM EPUB files, and advertises more than 50 languages. As audio plays, spoken text is highlighted; playback speed can be adjusted, with Pro listing speeds up to 3.5x. Users can highlight documents, add notes and comments, and mark images or graphs with shape highlights. The app can scan printed material, including multiple pages in a batch. Listed platforms are Android, iOS, web, and an extension; the Chrome extension page says it works with Google Docs and Gmail, while Canva integration appears on the pricing page. Free includes standard voices, limited access to Pro voices, and limited document uploads. Pro is listed at $119.04 per year, billed annually ($9.92/month), and includes a three-day trial. The selected plan begins automatically after the trial unless canceled. The company offers volume-based pricing for teams and institutions.

ChatPDF lets users summarize documents and ask questions about their contents using conversational AI. Answers include citations that point to references in a PDF, and users can organize files in folders or discuss multiple PDFs in one conversation. It accepts PDFs in any language and supports conversations in any language; listed file types also include Word, PowerPoint, Markdown and text. Sharing links can be created, with access permissions managed or revoked. ChatPDF says documents are encrypted during transfer and storage and can be deleted by the user. Queries are routed dynamically between GPT-4o and GPT-4o-mini. The service works in a browser on any device and is listed for Android, iOS, Linux, macOS and Windows. Its backend API accepts uploaded PDFs or public URLs and lets users query them to build custom PDF chatbots. The API documentation limits each PDF to 2,000 pages or 32 MB and describes the chat API as stateless. The Free plan costs nothing and allows two documents per day.