Wunder vs Common Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Wunder
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Wunder is an eBook reader for your own PDF, EPUB, and TXT files. Import your books into a quiet bookshelf and read on iPhone and iPad, or use read-aloud playback when you want to rest your eyes. Add bookmarks, highlight, underline, annotate, and collect excerpts as you read. Turn selected passages into shareable note cards, while your bookshelf, reading progress, and notes stay organized on your device. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://app.notion.com/p/Wunder-Privacy-Policy-36b9645c47b680179361c6bb3be81b07
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.
Screenshots
Verdict
The clearest difference is iOS requirement: Wunder at 16.0 against Common Reader's 26.0. On price, update cadence, ads and in-app purchases 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.
Wunder ships an update every 3 days, Common Reader every 2 days. The most recent releases landed on September 25, 2026 and September 29, 2026 respectively.
| Parameter | Wunder | Common Reader |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 219 MB | 107 MB |
| Age rating | 4+ | 4+ |
| Developer | 国城 林 | 天宇 高 |
In-app purchases
Wunder
No in-app purchases
Common Reader
No in-app purchases
