Lexfolio: EPUB & PDF Reader

Lexfolio is a reader for every EPUB and PDF you own: novels, textbooks, papers, manuals and scanned documents. Open two books at once, look up a word without leaving the page, mark what matters and find it again with one search.

TWO BOOKS SIDE BY SIDE On iPad and Mac, open two books next to each other: a novel and its translation, a textbook and your lecture notes, a paper and the source it cites. Each pane keeps its own place, and you can link them so they scroll together. On iPhone you switch between the two.

A DICTIONARY OVER THE PAGE Select a word to look it up. Lexfolio includes dictionaries for English, French, German, Spanish, Latin and Ancient Greek, and they work without a connection. You choose the dictionaries for each book. Inflected Ancient Greek forms are traced back to their headword, with a transliteration.

HIGHLIGHTS AND NOTES Highlight in EPUB and PDF, change or remove colors, write notes, add bookmarks and pin a note to a spot on the page. Notes are anchored to the text, so they stay with their passage.

SEARCH EVERYTHING Search the text of all your books together with your highlights, notes and saved words. Scanned PDFs become searchable through on-device text recognition.

WORDS WORTH KEEPING Save a word while you read. It goes to your Word Vault with the passage it came from and comes back later as a review card.

FOR STUDY AND RESEARCH Line up a passage with its translation, connect passages from different books under one idea, and gather sources, notes and threads into a project. Export references for your own writing.

YOUR LIBRARY, YOUR DATA Import your own EPUB and PDF files without DRM from Files, iCloud Drive or other apps. Books, notes and reading positions stay on your device, and you can sync them through your private iCloud account on iPhone and iPad. There are no ads and no tracking, and you do not need an account.

OPTIONAL AI If you want help with a passage, you can use your own API key, or hand a passage to ChatGPT, Claude or Gemini yourself. Both stay off until you turn them on.