# csBooks vs EpubReader

The clearest difference is in-app purchases: EpubReader at none against csBooks's 2. EpubReader also leads on ads (none vs shown). csBooks's advantage is update cadence (every 10 days vs every 3 months) and device support (4 vs 2). On price, review sentiment and iOS requirement there is nothing between them.

Both are free to download. csBooks sells 2 in-app purchases, starting at $6.99 per month. EpubReader asks for nothing beyond the download.

csBooks ships an update every 10 days, EpubReader every 3 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | csBooks | EpubReader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/epubreader-ebook-reader-and-tts/id6759942761/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 63 MB | 3 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ravi Kumar Sharma](https://appshunter.io/developer/1695922963) | [Penghui Zhao](https://appshunter.io/developer/421609849) |

## What reviewers say

### csBooks

[App page](https://appshunter.io/ios/app/csbooks-epub-and-pdf-reader/id6477337382)

This app allows users to read and manage ePub and PDF books from their device. It offers features like automatic thumbnail generation, reading progress tracking, customizable text size, and multiple themes for a comfortable reading experience.

**Highlights:** Read ePub and PDF files, Manage book library, Auto book thumbnail generation, Reading progress tracking, Customizable text size and font, 8 stylish reading themes, Cloud storage and desktop sync

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Pro (Monthly) | $6.99 | per month |
| Unlimited Pro (Yearly) | $22.99 | per year |


### EpubReader

[App page](https://appshunter.io/ios/app/epubreader-ebook-reader-and-tts/id6759942761)

Read EPUB books offline with a customizable reader. Listen to your books with built-in text-to-speech and sync your library across devices. Organize your collection with custom collections and smart sorting.

**Highlights:** Offline EPUB reading, Built-in text-to-speech (TTS), iCloud library sync, Customizable reading experience, Organize books into collections, Multiple import methods

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is csBooks free?

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

### Is EpubReader free?

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

### Do csBooks or EpubReader have ads?

csBooks shows ads; EpubReader does not.

### Which is updated more often, csBooks or EpubReader?

csBooks ships an update every 10 days, and EpubReader every 3 months. Most recently, csBooks was updated on November 4, 2026 and EpubReader on October 31, 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.*