--- title: "KO Reader — App Overview" url: https://marlvel.ai/intel-report/book/jim-kokoroscreenreader category: Book developer: James Carrell II platforms: ios rating: 5.0 (1 ratings) pricing: paid report_level: overview generated: 2026-05-06 last_verified: "2026-05-09T01:59:05.635Z" --- > **Key Insight:** KO Reader is a privacy-focused, one-time purchase tool for converting various digital document formats into offline, natural-sounding audio. | Metric | Value | |--------|-------| | Category | Book | | Rating | 5.0 ★ (1) | | Pricing | paid | | Platforms | iOS | | Latest Version (iOS) | 1.0 | | Developer | James Carrell II | ## What is KO Reader? KO Reader is a local-first text-to-speech utility that converts web articles, ebooks, and PDFs into neural AI audio. By processing all content on-device, it ensures user privacy and offline functionality without requiring cloud connectivity or recurring subscriptions. ## Key Features - **Local AI Processing**: Converts text to speech entirely on-device, eliminating the need for cloud processing or internet connectivity. - **Multi-Format Support**: Reads web articles, EPUB ebooks, PDFs, and plain text, including specific chapter detection for fanfiction platforms. - **Neural Voice Library**: Provides 53 neural AI voices across nine languages with adjustable playback speeds. - **Audio Export**: Allows users to export their reading materials into m4a or m4b audio files. ## Who is it for? Readers and commuters who want to consume digital content via high-quality audio while maintaining data privacy. ## Links - [App Store](https://apps.apple.com/us/app/ko-reader/id6761862109?uo=2) - [Full Intelligence Report](https://marlvel.ai/intel-report/book/jim-kokoroscreenreader) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/book/jim-kokoroscreenreader).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*