Kinetic Reader vs Kujun
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Kinetic Reader
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Read at the speed of thought. Kinetic Reader brings your books, articles, and documents to life word by word. Tune your pace, keep your focus, and actually remember what you read, all stored privately on your device. Welcome to the massive 2.0 update! We have completely rebuilt the experience with an enlarged reading window, an upgraded codebase, and powerful new customization options. Plus, Kinetic Reader is now free to start. WHAT IS NEW IN 2.0 Expanded Reading Window: A larger, cleaner interface designed for absolute focus. Simply tap the reading window to pause or resume playback. Multiple Document Library: Build your personalized library. Each document retains its own bookmarks and reading position. 8 Color Themes: Pick the palette that suits your eyes and your environment, from warm sepia to true midnight. Expanded Chunk Ranges: Group words into larger visual chunks to match your exact processing speed and rhythm. EVERYTHING YOU NEED TO READ FASTER Precision Speed Control: Dial in any pace from 200 to 800 WPM. Adjust on the fly mid-session, and the app will remember your preference. Retention Mode: Reading is only useful if it sticks. Retention Mode pauses playback at set intervals and prompts you to recall what you just covered. Focus Highlight: Each word appears centered and clean, with an optional focal point highlight to anchor your eyes and eliminate wandering attention. Smart Navigation: Chapters are auto-detected in your text. Jump forward or back by chapter with a single tap, or scrub to any position. Instant Bookmarks: Drop a bookmark anywhere mid-read and jump back instantly. Never lose your place. Accessibility First: Customize font sizes, word spacing, and line spacing. Use full-opacity contrast for secondary text and an optional portrait lock. WORKS WITH ALL YOUR TEXT Load any file directly from your device or paste text from your clipboard. Kinetic Reader extracts clean, readable content from: EPUB PDF DOCX TXT Markdown HTML RTF CSV JSON SIMPLE AND FAIR PRICING Download for free and add your first document at no cost to experience the full power of the reading engine. When you are ready to build out your library, a single one-time Premium purchase unlocks unlimited document storage. No subscriptions, ever. 100% PRIVATE AND OFFLINE Your reading is yours. Kinetic Reader stores everything locally on your device. There are no accounts to create, no servers to phone home to, no ads, and no data collected about your reading habits. It works completely offline and is exactly as private as a physical paperback.
Kujun
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See your consistency at a glance β and keep it completely to yourself. Kujun is a private, fully native habit tracker. No account. No subscription. No cloud. Everything lives on your device, and the app collects zero data. Named after the Korean word κΎΈμ€ (kkujun) β "steady, consistent" β Kujun is built around one idea: show up daily, and watch that consistency build. PRIVATE BY DESIGN β’ No account or sign-up β open the app and start β’ No subscription required β’ All your data stays in a local database on your device β’ No analytics, no tracking, no third-party SDKs YOUR CONSISTENCY AT A GLANCE β’ A GitHub-style heat map for every habit β’ Current streak, best streak, and completion rate β’ The longer you show up, the better it looks CHECK OFF WITHOUT OPENING THE APP β’ Home Screen widgets (small and medium) show your last 7β14 days and streaks β’ Complete habits straight from reminder notifications β’ Tap the widget to jump right into the app MADE FOR DAILY USE β’ Create habits with a name, icon, color, and weekly schedule β daily or any set of weekdays β’ Sort, reorder, and edit habits any time β’ Gentle reminders at the time you choose β’ Haptics and a small celebration when your day is complete FAST AND NATIVE β’ Built with native iOS components, SF Symbols, and modern iOS design β’ Light and dark mode, at home on your iPhone YOUR DATA IS YOURS β’ Export a backup file any time and restore it on any device β’ Delete the app and nothing lingers on a server β because there is no server Start small. Stay steady. Watch the heat build.
Screenshots
Verdict
The clearest difference is device support: Kinetic Reader at 3 against Kujun's 1. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Kinetic Reader ships an update every 5 months, Kujun every 3 months. The most recent releases landed on October 21, 2026 and October 15, 2026 respectively.
| Parameter | Kinetic Reader | Kujun |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 3 months β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 15.0 β better | 16.4 |
| Further details β not scored | ||
| Size | 20 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryan Bair | Code with Beto |
In-app purchases
Kinetic Reader
No in-app purchases
Kujun
No in-app purchases








