Doxy vs Explainpaper

Doxy is a web document-chat app for asking questions about uploaded files and other source material. Users organise files into projects, ask questions in plain language and receive answers that cite the documents used. Supported inputs include PDFs, Word, PowerPoint, Excel, images, audio, HTML, CSV, ZIP and EPUB files, plus web links and YouTube URLs. YouTube questions use the video transcript. Users can upload and ask questions in many languages, with answers in the question’s language where the source supports it. Pro and Business plans generate multiple-choice quizzes with explanations and open-ended practice exercises from selected sources. The Free plan costs nothing for 3 documents, 20 questions monthly and 10 MB files. Pro costs $4.99 a month for 100 documents, 1,000 questions monthly and 50 MB files. Business costs $9.99 a month with unlimited documents and questions and 200 MB files. An account is required.

Explainpaper is a web-based AI reader for research papers. Readers highlight confusing passages to get explanations with adjustable complexity, support for more than 50 languages, and context from the full paper. Paper chat answers questions using the paper’s content, allows follow-ups, and can summarize findings; answers can cite sections so readers can locate relevant material. The product also generates outlines, extracts key points, and shows relationships between concepts. Its free plan is available indefinitely and includes unlimited highlight explanations, follow-up questions, Zotero library import, and basic AI models. Pro costs $16 a month and adds Math Explain for formulas and figures, advanced AI models, whole-paper summaries, saved highlights and explanations, and paper questions. The Pro trial lasts seven days and requires a card. Explainpaper says subscriptions are billed monthly or annually according to the selected plan and payments are processed through Stripe. The product describes its audience as researchers.