--- title: "KO Reader - Bewertungen, Einnahmen und Downloads in Brasilien | Apple App Store" description: "KO Reader turns web articles, ebooks, and PDFs into natural-sounding speech — entirely on your device. No cloud, no tracking, no subscriptions. Paste a URL or open an EPUB or PDF, and KO Reader reads " --- # KO Reader — Brasilien ![KO Reader App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/d9/df/b8/d9dfb801-e80a-29f3-21dc-49901595396e/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png) **Developer:** [James Carrell II](https://apptail.io/de/developer/james-carrell-ii-AXCbWb) **Category:** Books **Rating:** N/A (0 ratings) **Price:** Free **Bundle ID:** jim.KokoroScreenReader **Store:** Apple App Store **Country:** Brasilien **Version:** 1.0 (released 2026-04-16) **Original Release:** 2026-04-16 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/br/app/app/id6761862109) **AppTail Page:** [https://apptail.io/de/app/ko-reader-ENqz/brazil](https://apptail.io/de/app/ko-reader-ENqz/brazil) ## KO Reader Description KO Reader turns web articles, ebooks, and PDFs into natural-sounding speech — entirely on your device. No cloud, no tracking, no subscriptions. Paste a URL or open an EPUB or PDF, and KO Reader reads it aloud with a neural AI voice. Everything runs locally, so your reading stays private and works anywhere — on the train, on a plane, or off-grid. Export your favorite articles or books to m4a or m4b files. WHAT YOU CAN READ • Web articles — Wikipedia, news sites, blogs, and Substack • Fanfiction — Archive of Our Own, Royal Road, and Wattpad, with chapter detection • EPUB ebooks with full chapter navigation • PDF documents • Plain text — paste or type any content • Safari Share Extension — send articles to KO Reader with one tap NATURAL AI VOICES • 53 neural voices across 9 languages: American and British English, Spanish, French, Italian, Portuguese, Japanese, Mandarin, and Hindi • Preview any voice before selecting it • Mark favorites for quick access • Playback speed from 0.5x to 2.0x • Smart heteronym resolution — the voice knows the difference between "lead" (the metal) and "lead" (to guide), "wound" (injury) and "wound" (past of wind) • Custom pronunciation dictionary — teach the reader how to say names, jargon, or anything you like READ YOUR WAY • Reading queue — line up multiple articles and auto-advance • Bookmarks — save passages to come back to • Reading history — pick up where you left off, across books and articles • Chapter pre-generation — book chapters start instantly, no waiting between them • Audio export — save generated audio for offline listening • Adjustable article font (system, serif, monospaced, rounded) and Dynamic Type support BUILT FOR ACCESSIBILITY • Full VoiceOver support with labeled controls throughout • Haptic feedback on transport controls and sleep timer • Background audio — listen while you use other apps or with the screen off • Sleep timer — stops playback when you drift off • Works with AirPods, Bluetooth speakers, and CarPlay RUNS EVERYWHERE • Universal app for iPhone, iPad, and Mac • macOS keyboard shortcuts (Space to play/pause, Cmd+← and Cmd+→ to skip) • Optimized for Apple Silicon with optional CoreML acceleration • Adjustable CPU thread count for performance tuning PRIVACY FIRST • 100% on-device TTS — your content never leaves your phone • No accounts, no analytics, no tracking, no ads • No internet required after the one-time model download • Reading progress stored locally only KO Reader downloads a ~350 MB neural voice model on first launch. After that, everything works fully offline. Powered by the open-source Kokoro TTS model (Apache 2.0). ## KO Reader Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/dd/e3/41/dde3414c-47e4-7526-1932-2c51d4dd09c8/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M4_U0029_-_2026-04-15_at_10.50.41.png/2048x2732.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/fe/84/7b/fe847b22-dfac-7696-9969-6caa1d45ca26/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M4_U0029_-_2026-04-15_at_10.51.07.png/2048x2732.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d7/14/a3/d714a3df-2f80-847a-9e82-3a0df2104253/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M4_U0029_-_2026-04-15_at_10.51.54.png/2048x2732.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/34/ab/f8/34abf815-9270-b38d-2f2a-dcfc6ebddfc2/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M4_U0029_-_2026-04-15_at_10.52.09.png/2048x2732.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/1a/35/17/1a351732-480b-ba4c-1576-c06bcafdb6ba/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M4_U0029_-_2026-04-15_at_10.52.30.png/2048x2732.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/6b/80/43/6b80435e-a36f-d0c1-10bf-3ffd88fe456f/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M4_U0029_-_2026-04-15_at_10.51.20.png/2048x2732.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/41/31/a5/4131a5e5-bf79-4ebe-a9a4-d3caac890be4/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M4_U0029_-_2026-04-15_at_10.56.14.png/2732x2048.png) - [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/33/e3/b0/33e3b0c3-2d28-db99-5580-7c62ca32af96/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M4_U0029_-_2026-04-15_at_10.54.35.png/2732x2048.png) - [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/52/25/14/522514bd-d97a-02a0-17b5-7be3d569913c/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M4_U0029_-_2026-04-15_at_10.54.59.png/2732x2048.png) ## KO Reader Store Rankings | Chart | Country | Category | Rank | |-------|---------|----------|------| | Top Bezahlt | Brasilien | Books | #2 | | Top Bezahlt | Deutschland | Books | #17 | | Top Bezahlt | Peru | Books | #103 | | Top Bezahlt | Frankreich | Books | #137 | | Top Bezahlt | Polen | Books | #195 | | Top Bezahlt | Brasilien | Overall | #248 | | Top Bezahlt | Italien | Books | #327 | ## Apps Similar to KO Reader - [PocketBook Reader](https://apptail.io/de/app/pocketbook-reader-cze/brazil) - [MP3 Audiobook Player](https://apptail.io/de/app/mp3-audiobook-player-Hif/brazil) - [Comic Book Viewer](https://apptail.io/de/app/comic-book-viewer-ZXS/brazil) - [ListenBook: audiobook player](https://apptail.io/de/app/listenbook-audiobook-player-rJBl/brazil) - [TTS Reader: Voice Aloud Reader](https://apptail.io/de/app/tts-reader-voice-aloud-reader-VCkw/brazil) - [PageEcho - 온디바이스 AI 텍스트 리더](https://apptail.io/de/app/pageecho-ai-IoJx/brazil) - [LoudReader](https://apptail.io/de/app/loudreader-yVAy/brazil) - [Morph Books](https://apptail.io/de/app/morph-books-Phhz/brazil) ## KO Reader Available In - [Vereinigte Staaten](https://apptail.io/de/app/ko-reader-ENqz/united-states) - [Brasilien](https://apptail.io/de/app/ko-reader-ENqz/brazil) - [Peru](https://apptail.io/de/app/ko-reader-ENqz/peru) - [Polen](https://apptail.io/de/app/ko-reader-ENqz/poland) --- ## About AppTail [AppTail](https://apptail.io/de) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io/de) - [Top Charts](https://apptail.io/de/top-iphone-apps) - [Sign Up for Full Access](https://apptail.io/de/account/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io/de) - Mobile App Intelligence Platform*