# Castle eReader vs DecipherInk

The clearest difference is in-app purchases: Castle eReader at none against DecipherInk's 5. Castle eReader also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. DecipherInk sells 5 in-app purchases, starting at $0.99 per 7 days. Castle eReader asks for nothing beyond the download.

## The numbers

| Metric | Castle eReader | DecipherInk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/decipherink/id6742208925/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 5 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 91 MB | 40 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Castle Publications, LLC](https://appshunter.io/developer/1663236632) | [Glassfish Education, LLC](https://appshunter.io/developer/1797444818) |

## What reviewers say

### Castle eReader

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

**Features:** macOS Compatibility

**In-app purchases:** none


### DecipherInk

[App page](https://appshunter.io/ios/app/decipherink/id6742208925)

Learn to read historical documents with this interactive app. It focuses on paleography, grammar, and vocabulary for genealogical research. Practice exercises enhance reading speed and retention.

**Highlights:** Paleography and script learning, Genealogical document vocabulary, Basic grammar for historical texts, Reading speed practice, Document deciphering exercises, Reference materials

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| German - 1 Week | $0.99 | per 7 days |
| German - 1 Month | $25.00 | per month |
| German - 3 Months | $254.99 | per 3 months |
| German - 1 Year | $274.99 | per year |
| German - 6 Months | $449.99 | per 6 months |


## Frequently asked questions

### Is Castle eReader free?

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

### Is DecipherInk free?

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

### Do Castle eReader or DecipherInk have ads?

DecipherInk shows ads; Castle eReader does not.

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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.*