What you can do with it
An AI math assistant that explains problems and supports study tools such as graphs, flashcards, and related questions.
What’s included for free
The free plan includes limited AI solver usage and image input without a credit card. More capable modes and higher usage limits are paid.
Free tiers can restrict usage or features. Paid upgrades are separate.
Official sources
The official pages used to check this listing.
Free planAskYourPDF
AskYourPDF provides a chat interface for asking questions about uploaded documents. It is useful for navigating a report, locating relevant information and understanding dense sections without reading everything in order. Its free plan publishes concrete daily limits and identifies its included model, which makes the allowance relatively easy to compare.
Free planChatPDF
ChatPDF lets you upload a PDF and ask questions about its contents in a conversational interface. It is useful for finding a passage, understanding a document or getting an initial summary. The free service can be started without an account, while registering adds conveniences such as saved history and multi-document conversations.
Free planFathom
Fathom captures meetings and turns them into transcripts and concise AI call summaries. Its individual free plan is useful for people who want to review conversations and share relevant clips without manually taking every note. More advanced summaries, generated action items and conversational meeting assistance are part of higher tiers.