Comma Reading App vs Source.

A beautiful home for your EPUBs & PDFs. Lifelike read-aloud voices, smart organisation, highlights & excerpts. All private, all on-device. Sync in iCloud with Pro. Comma is a minimalist EPUB and PDF reader for people who value simplicity, privacy, and focus. Built with Apple's latest technologies, it turns your digital library into a beautiful, organised collection while staying out of the way when you read. Library - Import EPUB and PDF files with ease - Add free, public-domain books from Standard Ebooks, built right in - Smart categorisation and custom categories - Search by title or author - Immersive Library Explorer for browsing and discovery - Home Screen widget for the books you're reading Apple Intelligence - Automatic book categorisation - Chapter summaries for quick understanding - All processing happens on-device for complete privacy Reading - Clean, distraction-free reading experience - Multiple themes, fonts, and layout options - Paginated or scrolling reading modes - Automatic position saving - Highlights, notes, and full-text search - Save memorable passages to the Excerpts Wall - "More Info" sheet with cover, description, publisher, and page count Listen (Read Aloud) - Natural, expressive neural voices that run entirely on-device Six languages: English, French, German, Italian, Portuguese, and Spanish - Over 25 voices with previews, plus built-in system voices - Adjustable speed, and listening continues in the background Comma Pro (One-Time Purchase) - iCloud Sync across your Apple devices - Sync library, reading progress, highlights, notes, and excerpts - Offload books to save storage while keeping your reading data More Features - Long-press any cover for quick actions - Per-book reading preferences - Adaptive reading controls - Reading progress tracking - Duplicate detection - Optimised for iPhone and iPad Privacy First - No ads. No tracking. No accounts. Your library stays yours. Apple Intelligence features require iOS 18.2 or later and a supported device (iPhone 15 Pro or newer, or iPad with M1 chip or later). Unsupported devices use smart fallback categorisation while keeping full reading functionality. Neural Read Aloud voices download separately and require a recent device.

Source is the human-powered network for physical information access. Every day, students, academics, collectors, journalists, and researchers need access to books, archives, manuscripts, and private collections that are not digitised. Most knowledge still lives physically in libraries, archives, and home collections worldwide. Source connects you to someone who is already there.