Comma Reading App

Read your EPub and PDF books with ease using local AI-powered organization.

Comma is a minimalist EPUB and PDF reader designed for readers who value simplicity, privacy, and a distraction-free experience. Built with Apple's latest technologies, Comma transforms your digital library into an organized, beautiful collection.

INTELLIGENT ORGANIZATION (Apple Intelligence) • Automatic book categorization across 18 categories • AI-generated subjects for each book • Chapter summaries with key points • Text explanations for deeper understanding • All processing happens on-device—complete privacy

POWERFUL LIBRARY MANAGEMENT • Import EPUB and PDF files effortlessly • Smart duplicate prevention • Beautiful 3-column grid with cover art • Category filtering with visual indicators • Search by title or author instantly • Floating Books view for immersive browsing

EXCEPTIONAL READING EXPERIENCE • Full-screen, distraction-free reader • Quotes Wall for memorable passages • Tap to reveal elegant overlay controls • Four beautiful themes: System, Serene Dark/Light, Cozy Sepia • Customizable fonts, sizes, spacing, and alignment • Both paginated and scroll reading modes • Automatic position saving—pick up exactly where you left off • Text highlighting with instant search • Full-text search within books • Visual progress tracking

PERSONALIZED SETTINGS • Per-book preferences (each book remembers its settings) • Adaptive overlay that matches your reading theme • System font support for accessibility • Instant theme switching

PRIVACY FIRST • All AI processing happens on your device • No cloud services or data collection • Your library stays completely private • No account required

APPLE INTELLIGENCE FEATURES Comma leverages Apple Intelligence (iOS 18.2+) for automatic categorization, subject generation, chapter summaries, and text explanations. Requires iPhone 15 Pro or later or iPad with M1+. Unsupported devices use smart fallback categorization—all features work perfectly.

Comma respects your reading time. No ads, no subscriptions, no distractions—just you and your books.