# Common Reader vs Island Reader

The clearest difference is in-app purchases: Common Reader at none against Island Reader's 4. Island Reader's advantage is ratings volume (3 vs 1) and iOS requirement (18.0 vs 26.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Island Reader sells 4 in-app purchases, starting at $4.99 per month. Common Reader asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Common Reader against 5.0 for Island Reader. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews are what separate them: 75% of Common Reader's written reviews are positive against 74% of Island Reader's.

Common Reader ships an update every 2 days, Island Reader every 4 days. The most recent releases landed on October 14, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Common Reader | Island Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/common-reader-ebook-reader/id6770067434/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/island-reader-read-and-listen/id6788645279/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | **75.0% of reviews** | 73.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | Free with in-app purchases | Freemium |
| Size | 116 MB | 163 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Age rating | 4+ | 9+ |
| Developer | [天宇 高](https://appshunter.io/developer/1851416147) | [ZHENGZHOU CREATION INFORMATION TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1696030576) |

## What reviewers say

### Common Reader

[App page](https://appshunter.io/ios/app/common-reader-ebook-reader/id6770067434)

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.

**Highlights:** 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

**In-app purchases:** none


### Island Reader

[App page](https://appshunter.io/ios/app/island-reader-read-and-listen/id6788645279)

Transform your personal EPUB, PDF, and TXT files into a private digital library. Read and listen to your documents with natural AI voices, follow along with highlighted text, and sync your progress across Apple devices. Personalize your reading experience with customizable themes and navigation.

**Highlights:** Import EPUB, PDF, TXT files, Natural AI and system voices, Sentence-by-sentence highlighting, Customizable reading themes, Cross-device syncing via iCloud, Private library, files stay local

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Annual | $19.99 | per year |
| Lifetime Offer | $22.99 | one-time |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Common Reader free?

Common Reader is free to download, with no in-app purchases.

### Is Island Reader free?

Island Reader is free to download, with in-app purchases available.

### Which has better reviews, Common Reader or Island Reader?

Common Reader and Island Reader are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Common Reader or Island Reader have ads?

Neither Common Reader nor Island Reader shows ads.

### Which is updated more often, Common Reader or Island Reader?

Common Reader ships an update every 2 days, and Island Reader every 4 days. Most recently, Common Reader was updated on October 14, 2026 and Island Reader on October 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*