# Encyclopedia vs Pocket Planets

The clearest difference is rating: Pocket Planets at 4.6 against Encyclopedia's 3.8. Pocket Planets also leads on in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 62 months). Encyclopedia's advantage is ads (none vs shown) and review sentiment (83% vs 67%). On price, ratings volume and device support there is nothing between them.

Both are free to download. Encyclopedia sells 1 one-off in-app purchase. Pocket Planets asks for nothing beyond the download.

Pocket Planets holds the better App Store score, 4.6 against 3.8. Both are backed by a comparable volume of ratings — 14 and 22 respectively. Written reviews complicate that: 83% of Encyclopedia's written reviews are positive against 67% of Pocket Planets's, so the app with the better star average is not the one people write more warmly about.

Encyclopedia ships an update every 62 months, Pocket Planets every 3 weeks. The most recent releases landed on September 3, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Encyclopedia | Pocket Planets |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (14 ratings)](https://appshunter.io/ios/app/encyclopedia-solar-system/id1124568774/reviews) | **[4.6 (22 ratings)](https://appshunter.io/ios/app/pocket-planets/id1496547610/reviews)** |
| Number of ratings | 14 | **22** |
| Positive reviews | **83.3% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 62 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 322 MB | 66 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Good Spider, LLC](https://appshunter.io/developer/1487595667) | [Ad Lunam Kereskedelmi es Szolgaltato Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1496547609) |

## What reviewers say

### Encyclopedia

[App page](https://appshunter.io/ios/app/encyclopedia-solar-system/id1124568774)

Explore the solar system with extensive articles and high-definition images. This app offers comprehensive information, engaging content, and a user-friendly interface, making it suitable for both children and adults interested in space.

**Highlights:** Thousands of articles and HD photos, Comprehensive solar system information, Engaging and easy-to-understand content, Offline availability, Badge collection for reading, Intuitive user interface

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

**In-app purchases (1)**

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


### Pocket Planets

[App page](https://appshunter.io/ios/app/pocket-planets/id1496547610)

Explore our solar system with detailed information on planets, moons, and astronauts. Track who is currently in space and receive notifications for new launches. Access NASA images and compare celestial body characteristics.

**Highlights:** Detailed planet and moon data, Astronaut information and missions, Real-time space occupancy, Launch notifications, NASA image gallery, Celestial body comparisons

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

**In-app purchases:** none


## Frequently asked questions

### Is Encyclopedia free?

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

### Is Pocket Planets free?

Pocket Planets is free to download, with no in-app purchases.

### Which has better reviews, Encyclopedia or Pocket Planets?

Pocket Planets is rated higher. Encyclopedia averages 3.8 out of 5 from 14 ratings, while Pocket Planets averages 4.6 from 22 ratings.

### Do Encyclopedia or Pocket Planets have ads?

Pocket Planets shows ads; Encyclopedia does not.

### Which is updated more often, Encyclopedia or Pocket Planets?

Encyclopedia ships an update every 62 months, and Pocket Planets every 3 weeks. Most recently, Encyclopedia was updated on September 3, 2026 and Pocket Planets on September 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.*