# csBooks vs Paper Quest

The clearest difference is ads: Paper Quest at none against csBooks's shown. csBooks's advantage is update cadence (every 2 weeks vs every 4 weeks) and device support (4 vs 2). On price and in-app purchases there is nothing between them.

Both are free to download. csBooks sells 2 in-app purchases, starting at $6.99 per month and Paper Quest sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

csBooks ships an update every 2 weeks, Paper Quest every 4 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | csBooks | Paper Quest |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 4 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 61 MB | 16 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ravi Kumar Sharma](https://appshunter.io/developer/1695922963) | [Jorge Costa](https://appshunter.io/developer/1712839629) |

## 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 |


### Paper Quest

[App page](https://appshunter.io/ios/app/paper-quest-ebook-reader/id6805925020)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A little bookmark | $1.99 | one-time |
| A fresh chapter | $3.99 | one-time |
| Lifetime Stats | $5.99 | one-time |
| A grand adventure | $8.99 | one-time |


## Frequently asked questions

### Is csBooks free?

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

### Is Paper Quest free?

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

### Do csBooks or Paper Quest have ads?

csBooks shows ads; Paper Quest does not.

### Which is updated more often, csBooks or Paper Quest?

csBooks ships an update every 2 weeks, and Paper Quest every 4 weeks. Most recently, csBooks was updated on November 8, 2026 and Paper Quest 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.*