# Encyclopedia of Outer Space vs StudyCycle

The clearest difference is rating: StudyCycle at 5.0 against Encyclopedia of Outer Space's 4.6. Encyclopedia of Outer Space's advantage is update cadence (every 5 days vs monthly) and ratings volume (13 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Encyclopedia of Outer Space sells 1 one-off in-app purchase and StudyCycle sells 2 in-app purchases, starting at $11.99 per month. Whichever you choose, the download price is not the number that matters.

StudyCycle holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Encyclopedia of Outer Space has 13 ratings behind it against 1, so its average is the more settled of the two.

Encyclopedia of Outer Space ships an update every 5 days, StudyCycle monthly. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Encyclopedia of Outer Space | StudyCycle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (13 ratings)](https://appshunter.io/ios/app/encyclopedia-of-outer-space/id1122571537/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/studycycle-learn-spanish/id6800029580/reviews)** |
| Number of ratings | **13** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 644 MB | 54 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Good Spider, LLC](https://appshunter.io/developer/1487595667) | [WILLIAM JAMES GARVEY](https://appshunter.io/developer/6800029582) |

## 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 (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


### StudyCycle

[App page](https://appshunter.io/ios/app/studycycle-learn-spanish/id6800029580)

This app offers a structured approach to learning Spanish, focusing on recall and pronunciation with verified content. Choose your preferred accent and practice through organized "Study Sheets" for effective language acquisition.

**Highlights:** Six accent choices, Organized content by category, Practice with "Study Sheets", Pronunciation feedback via transcription, Recall and spaced repetition methods, Content verified by native speakers

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StudyCycle Premium Monthly | $11.99 | per month |
| StudyCycle Premium Annual | $79.99 | 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 StudyCycle free?

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

### Which has better reviews, Encyclopedia of Outer Space or StudyCycle?

StudyCycle is rated higher. Encyclopedia of Outer Space averages 4.6 out of 5 from 13 ratings, while StudyCycle averages 5.0 from 1 ratings.

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

Neither Encyclopedia of Outer Space nor StudyCycle shows ads.

### Which is updated more often, Encyclopedia of Outer Space or StudyCycle?

Encyclopedia of Outer Space ships an update every 5 days, and StudyCycle monthly. Most recently, Encyclopedia of Outer Space was updated on October 24, 2026 and StudyCycle on October 8, 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.*