# PDF Reader vs MOBI EPUB FB2 DJVU Reader Book

The clearest difference is review sentiment: PDF Reader at 71% against MOBI EPUB FB2 DJVU Reader Book's 0%. PDF Reader also leads on rating (4.9 vs 1.0) and update cadence (every 3 weeks vs every 15 months). MOBI EPUB FB2 DJVU Reader Book's advantage is in-app purchases (none vs 5). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Reader sells 5 one-off in-app purchases. MOBI EPUB FB2 DJVU Reader Book asks for nothing beyond the download.

PDF Reader holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: PDF Reader has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 71% of PDF Reader's written reviews are positive against 0% of MOBI EPUB FB2 DJVU Reader Book's.

PDF Reader ships an update every 3 weeks, MOBI EPUB FB2 DJVU Reader Book every 15 months. The most recent releases landed on August 30, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | PDF Reader | MOBI EPUB FB2 DJVU Reader Book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/pdf-reader-mini-version/id898564035/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/mobi-epub-fb2-djvu-reader-book/id6477433954/reviews) |
| Number of ratings | **8** | 1 |
| Positive reviews | **71.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 15 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 50 MB | 40 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [绪强 任](https://appshunter.io/developer/898564038) | [NEURASYNC](https://appshunter.io/developer/1639101560) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-mini-version/id898564035)

This app allows you to read various document formats like PDF, EPUB, and CHM on your iPhone and iPad. It supports file import, text search, annotation, and even previewing MS Office files and videos. A simple to-do list and auto-save reading progress are also included.

**Highlights:** Reads PDF, CHM, EPUB, TXT files, PDF annotation and text search, File import via Files, Airdrop, iTunes, web, MS Office and video file preview, Simple To-Do list functionality, Auto-save reading progress

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reader App donate | $0.99 | one-time |
| Dropbox Support | $0.99 | one-time |
| Remove Ad | $4.99 | one-time |
| Todo donate | $7.99 | one-time |
| Todo donate | $14.99 | one-time |


### MOBI EPUB FB2 DJVU Reader Book

[App page](https://appshunter.io/ios/app/mobi-epub-fb2-djvu-reader-book/id6477433954)

This app is a versatile reader for various ebook formats including MOBI, EPUB, FB2, and DJVU. It offers a customizable reading experience and efficient library management with cross-device synchronization.

**Highlights:** Supports MOBI, EPUB, FB2, and DJVU formats, Customizable reading settings, Library organization tools, Cross-device synchronization, User-friendly interface

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Reader free?

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

### Is MOBI EPUB FB2 DJVU Reader Book free?

MOBI EPUB FB2 DJVU Reader Book is free to download, with no in-app purchases.

### Which has better reviews, PDF Reader or MOBI EPUB FB2 DJVU Reader Book?

PDF Reader is rated higher. PDF Reader averages 4.9 out of 5 from 8 ratings, while MOBI EPUB FB2 DJVU Reader Book averages 1.0 from 1 ratings.

### Do PDF Reader or MOBI EPUB FB2 DJVU Reader Book have ads?

Neither PDF Reader nor MOBI EPUB FB2 DJVU Reader Book shows ads.

### Which is updated more often, PDF Reader or MOBI EPUB FB2 DJVU Reader Book?

PDF Reader ships an update every 3 weeks, and MOBI EPUB FB2 DJVU Reader Book every 15 months. Most recently, PDF Reader was updated on August 30, 2026 and MOBI EPUB FB2 DJVU Reader Book on September 17, 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.*