# Encyclopedia of Outer Space vs CaseBook

The clearest difference is device support: Encyclopedia of Outer Space at 3 against CaseBook's 1. Encyclopedia of Outer Space also leads on iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Encyclopedia of Outer Space sells 3 in-app purchases, starting at $2.99 per month and CaseBook sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Encyclopedia of Outer Space | CaseBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (13 ratings)](https://appshunter.io/ios/app/encyclopedia-of-outer-space/id1122571537/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 644 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Good Spider, LLC](https://appshunter.io/developer/1487595667) | [Chris Beaver66260473](https://appshunter.io/developer/6784800527) |

## What reviewers say

### Encyclopedia of Outer Space

[App page](https://appshunter.io/ios/app/encyclopedia-of-outer-space/id1122571537)

An offline encyclopedia with thousands of articles and HD photos covering all aspects of outer space. Earn badges for reading and explore topics from A-Z with a simple, elegant interface.

**Highlights:** Thousands of articles and HD photos, Comprehensive outer space information, Simple organization and UI, Offline access, Badge collection for reading, Available on iPhone and iPad

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Annual Premium | $19.99 | per year |
| Full Version | $9.99 | one-time |


### CaseBook

[App page](https://appshunter.io/ios/app/casebook-mini-mba/id6784800525)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CaseBook Pro (Monthly) | $5.99 | per month |
| CaseBook Pro (Annual) | $49.99 | per year |


## Frequently asked questions

### Is Encyclopedia of Outer Space free?

Encyclopedia of Outer Space is free to download, with in-app purchases available.

### Is CaseBook free?

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

### Do Encyclopedia of Outer Space or CaseBook have ads?

Neither Encyclopedia of Outer Space nor CaseBook 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.*