Common Reader vs JustReader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Common Reader
This app offers a unified reading and AI-powered analysis experience for various ebook formats. It allows users to ask questions about book content, automatically organize their library, and sync across multiple devices. Privacy is a core focus, with no proactive data collection.
- Supports multiple ebook formats (epub, azw3, mobi, txt, md, pdf)
- AI-powered questions about book content
- Automatic library organization with generative AI
- Cloud sync (iCloud, OneDrive, WebDAV)
- Fast full-library search
- Unified cross-platform interface
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- UI and interactions follow a carefully unified cross-platform logic and are built with native technologies for iOS and iPadOS. - Supports many ebook formats, including epub, azw3, mobi, txt, markdown, and pdf. - Supports nearly every ebook rendering feature, including vertical writing and RTL. - Listen with built-in system voices or AI voice models. - A high-performance, Metal-powered simulated page-turn engine offers an unparalleled visual experience. - Deeply integrates AI features for asking questions about books and automatically organizing your library with generative AI. - Supports cloud sync through iCloud, OneDrive, Google Drive, WebDAV, and more. - Provides fast full-library search across books, authors, tags, notes, highlights, and original text. - The app does not proactively collect any of your information. Your data is only processed by the model and cloud storage providers you trust.
JustReader
A free, native reader for Mac, iPad, and iPhone that supports various file formats. It offers a customizable reading experience with multiple themes, fonts, and scroll options, plus on-device translation and no ads or tracking.
- Supports EPUB, FB2, MOBI, HTML, TXT, RTF, DOC/DOCX
- Customizable themes, typefaces, and palettes
- Continuous scroll, paged, or two-page spread
- On-device translation
- Chapter navigation and in-book search
- No ads or tracking
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JustReader is a free, native reader for Mac, iPad, and iPhone. Open a book file and read it the way it should look — one book at a time, no library to manage, no account, no ads. OPENS WHAT YOU HAVE EPUB, FB2, MOBI, HTML, TXT, RTF, DOC/DOCX (Mac), and their ZIP variants — with chapter extraction, footnotes, encoding detection, and embedded images. THE FULL READING EXPERIENCE Nine typefaces and 41 themes across five palettes, plus Typewriter and Terminal. Continuous scroll, paged, or two-page spread. Real hyphenation in Latin, Cyrillic, CJK, Arabic, and Greek. Read Aloud with word-by-word highlighting. On-device translation — nothing leaves your device. Chapter navigation, in-book search, an image gallery, and a fullscreen mode with multiple clock styles. PRIVATE BY DEFAULT No analytics, no telemetry, no tracking, no ads. Files stay on your device. WANT YOUR LIBRARY TO FOLLOW YOU? ContinuousReader is the full version: an iCloud-synced library with your reading position to the exact paragraph on every device, bookmarks and notes, OPDS catalogs, reading statistics, folders, and more. Free.
Screenshots
Verdict
The clearest difference is review sentiment: Common Reader at 100% against JustReader's 0%. Common Reader also leads on update cadence (every 2 days vs fortnightly). JustReader's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Common Reader ships an update every 2 days, JustReader fortnightly. The most recent releases landed on September 29, 2026 and October 9, 2026 respectively.
| Parameter | Common Reader | JustReader |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 107 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | 天宇 高 | Oleksii Koshkin |
Customer experience
Common Reader
JustReader
In-app purchases
Common Reader
No in-app purchases
JustReader
No in-app purchases









