Pyrdo

Most AI study tools answer from the open web. Pyrdo answers from the document you uploaded, and names the section it drew on, so you can check it rather than trust it. Upload a lecture PDF, essay or slide deck and ask in your own words. Maths is typeset properly, follow-ups stay in the same conversation, and it replies in English, French or Arabic. The free tier runs the same model as Pro — no cut-down version. Pro just raises the document size and daily limits. Free to start, no card.