This app transforms web articles, ebooks, and PDFs into natural-sounding speech using on-device AI. Enjoy private, offline listening with customizable voices and playback speeds. Export audio for later or read anywhere without an internet connection.
1.0
April 16, 2026
KO Reader can read web articles from sites like Wikipedia and news outlets, fanfiction from platforms like Archive of Our Own, EPUB ebooks with chapter navigation, PDF documents, and plain text. It also features a Safari Share Extension for easy content import.
KO Reader provides 53 neural voices across 9 languages, including American and British English, Spanish, French, Italian, Portuguese, Japanese, Mandarin, and Hindi. Users can preview voices before selecting them.
After the initial download of the approximately 350 MB neural voice model, KO Reader functions entirely offline. This means you can listen to your content on trains, planes, or in any location without internet access.
Yes, KO Reader allows you to export generated audio from your articles or books into m4a or m4b files. This feature enables offline listening without needing the app open.
KO Reader is built with accessibility in mind, offering full VoiceOver support with labeled controls. It also includes haptic feedback on transport controls and a sleep timer, making it a valuable tool for visually impaired users.
KO Reader is a paid application priced at $3.99. This one-time purchase grants access to all its features without any subscriptions or in-app purchases.
No, KO Reader is completely ad-free. The app emphasizes privacy and does not include advertisements, ensuring an uninterrupted listening experience.
KO Reader is a universal app available for iPhone and iPad. It is also optimized for Mac, offering keyboard shortcuts for a seamless experience across Apple devices.