Athena Reader is a free ebook and document reader for files you already own — EPUB, PDF, Word, TXT and more, with no built-in bookstore. Read offline, listen with system TTS, highlight and export notes to Markdown, and ask AI about one book, a shelf, or your whole library with citations you can open. Core reading, sync, notes and export are free with no ads. Available on iPhone, iPad, Android, web and Windows.