CastReader

CastReader reads pages from a range of sources such as Kindle libraries, PDFs, websites and AI responses, presenting audio narration with synchronized highlighting. It supports multiple platforms including mobile apps and browser extensions, and provides guided Read Aloud and Read & Explain modes to help readers understand difficult passages. The tool offers access across iOS, Android, Mac, Windows and web workflows, tying together reading and listening in one space.

CastReader keeps the original text in view while reading aloud, so users can follow along with the spoken words. It presents explanations for challenging sections and can highlight the text while an explanation is in progress. The product emphasizes control over how content is consumed, including voice selection, speed, and the option to switch to Explain mode for comprehension aid.

CastReader provides integration points with Kindle, online libraries, news outlets and document sources, allowing users to listen to books, articles and documents from these sources. It features a voice hub for selecting reading voices, and a private-voice cloning option for personalized playback on supported documents.

CastReader outlines plans, platform availability and integration limits, noting that iOS previews are in testing and that connections depend on source, device and region. It describes Free and Pro tiers, with Pro unlocking more hours, ebooks, voices and higher explain capacity, and specifies where private-voice cloning and APIs apply.

Use cases

• Reading long PDFs, books and articles with explanations
• Learning with explanations in multiple languages
• Private voice cloning for consistent narration