# Maruey Library vs Skybook E

The clearest difference is update cadence: Maruey Library at every 3 months against Skybook E's every 30 months. Skybook E's advantage is iOS requirement (12.1 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Maruey Library ships an update every 3 months, Skybook E every 30 months. The most recent releases landed on September 24, 2026 and March 16, 2026 respectively.

## The numbers

| Metric | Maruey Library | Skybook E |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 22.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 30 months |
| Monetization | Free | — |
| Size | 17 MB | 12 MB |
| Requires iOS | 14.0 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 17+ |
| Developer | [The Stock Exchange of Thailand](https://appshunter.io/developer/574531118) | [STAQ Technologies Co., Ltd.](https://appshunter.io/developer/506659247) |

## What reviewers say

### Maruey Library

[App page](https://appshunter.io/ios/app/maruey-library/id1399531051)

Access a vast collection of books and read them online anytime, anywhere. This digital library offers a convenient way to explore literature on your device.

**Highlights:** Read books online, Access anytime, Access anywhere, Digital library

**Features:** Vision Pro support

**In-app purchases:** none


### Skybook E

[App page](https://appshunter.io/ios/app/skybook-e/id1599065699)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Maruey Library free?

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

### Is Skybook E free?

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

### Do Maruey Library or Skybook E have ads?

Neither Maruey Library nor Skybook E shows ads.

### Which is updated more often, Maruey Library or Skybook E?

Maruey Library ships an update every 3 months, and Skybook E every 30 months. Most recently, Maruey Library was updated on September 24, 2026 and Skybook E on March 16, 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.*