# Castle eReader vs ProLiteracy eBook Reader

Castle eReader and ProLiteracy eBook Reader are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Castle eReader | ProLiteracy eBook Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 10 months |
| Size | 91 MB | 86 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Castle Publications, LLC](https://appshunter.io/developer/1663236632) | [ProLiteracy Worldwide](https://appshunter.io/developer/465340278) |

## What reviewers say

### Castle eReader

[App page](https://appshunter.io/ios/app/castle-ereader/id6446026046)

**Features:** macOS Compatibility

**In-app purchases:** none


### ProLiteracy eBook Reader

[App page](https://appshunter.io/ios/app/proliteracy-ebook-reader/id6447296461)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Castle eReader free?

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

### Is ProLiteracy eBook Reader free?

ProLiteracy eBook Reader is free to download, with no in-app purchases.

### Do Castle eReader or ProLiteracy eBook Reader have ads?

Neither Castle eReader nor ProLiteracy eBook Reader shows ads.

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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.*