# PPAS eReader vs csBooks

The clearest difference is in-app purchases: PPAS eReader at none against csBooks's 2. PPAS eReader also leads on ads (none vs shown). csBooks's advantage is update cadence (every 10 days vs every 43 months). On price, device support 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. PPAS eReader asks for nothing beyond the download.

PPAS eReader ships an update every 43 months, csBooks every 10 days. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | PPAS eReader | csBooks |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 43 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 46 MB | 63 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Xentral Methods](https://appshunter.io/developer/464707106) | [Ravi Kumar Sharma](https://appshunter.io/developer/1695922963) |

## What reviewers say

### PPAS eReader

[App page](https://appshunter.io/ios/app/ppas-ereader/id768470382)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is PPAS eReader free?

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

### Is csBooks free?

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

### Do PPAS eReader or csBooks have ads?

csBooks shows ads; PPAS eReader does not.

### Which is updated more often, PPAS eReader or csBooks?

PPAS eReader ships an update every 43 months, and csBooks every 10 days. Most recently, PPAS eReader was updated on October 15, 2026 and csBooks on October 12, 2026.

---

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