# EPUB Viewer Pro vs ReadFlow

The clearest difference is rating: ReadFlow at 4.8 against EPUB Viewer Pro's 3.5. ReadFlow also leads on update cadence (every 4 days vs every 5 months) and review sentiment (100% vs 84%). EPUB Viewer Pro's advantage is in-app purchases (none vs 3) and device support (4 vs 2). On price, ratings volume and ads there is nothing between them.

Both are free to download. ReadFlow sells 3 in-app purchases, starting at $0.99 per month. EPUB Viewer Pro asks for nothing beyond the download.

ReadFlow holds the better App Store score, 4.8 against 3.5. Both are backed by a comparable volume of ratings — 13 and 5 respectively. Written reviews point the same way: 84% of EPUB Viewer Pro's written reviews are positive against 100% of ReadFlow's.

EPUB Viewer Pro ships an update every 5 months, ReadFlow every 4 days. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | EPUB Viewer Pro | ReadFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (13 ratings)](https://appshunter.io/ios/app/epub-viewer-pro/id1572239625/reviews) | **[4.8 (5 ratings)](https://appshunter.io/ios/app/readflow/id6447425350/reviews)** |
| Number of ratings | **13** | 5 |
| Positive reviews | 84.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 3 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [青青 余](https://appshunter.io/developer/633344484) | [实 许](https://appshunter.io/developer/681075194) |

## What reviewers say

### EPUB Viewer Pro

[App page](https://appshunter.io/ios/app/epub-viewer-pro/id1572239625)

Easily read EPUB files with this specialized application. It offers a convenient, fast, and safe reading experience for your digital books. A Mac version is also available for enhanced functionality.

**Highlights:** Read EPUB files, Convenient reading, Fast performance, Safe usage, Mac version available

**Features:** Vision Pro support

**In-app purchases:** none


### ReadFlow

[App page](https://appshunter.io/ios/app/readflow/id6447425350)

This app transforms PDF documents into a comfortable reading experience on small screens. It offers text reflow, customization options for fonts and themes, and iCloud sync for seamless access across devices. Enjoy reading PDFs as easily as other ebook formats.

**Highlights:** PDF text reflow for mobile, Customizable fonts and themes, Import custom font files, iCloud sync, PDF file cropping, Metadata editing, Generate and share reflowed text

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReadFlow Pro 1x | $0.99 | per month |
| ReadFlow Pro 12x | $9.99 | per year |
| ReadFlow Pro ∞ | $19.99 | one-time |


## Frequently asked questions

### Is EPUB Viewer Pro free?

EPUB Viewer Pro is free to download, with no in-app purchases.

### Is ReadFlow free?

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

### Which has better reviews, EPUB Viewer Pro or ReadFlow?

ReadFlow is rated higher. EPUB Viewer Pro averages 3.5 out of 5 from 13 ratings, while ReadFlow averages 4.8 from 5 ratings.

### Do EPUB Viewer Pro or ReadFlow have ads?

Neither EPUB Viewer Pro nor ReadFlow shows ads.

### Which is updated more often, EPUB Viewer Pro or ReadFlow?

EPUB Viewer Pro ships an update every 5 months, and ReadFlow every 4 days. Most recently, EPUB Viewer Pro was updated on September 21, 2026 and ReadFlow on September 19, 2026.

---

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