# PLANETARIUM vs UNIVERSIKID

The clearest difference is in-app purchases: PLANETARIUM at none against UNIVERSIKID's 10. PLANETARIUM also leads on iOS requirement (11.0 vs 13.0). UNIVERSIKID's advantage is update cadence (every 2 weeks vs every 49 months). On price, ads and device support there is nothing between them.

Both are free to download. UNIVERSIKID sells 10 one-off in-app purchases. PLANETARIUM asks for nothing beyond the download.

PLANETARIUM ships an update every 49 months, UNIVERSIKID every 2 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | PLANETARIUM | UNIVERSIKID |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 49 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 195 MB | 572 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WAY Srl](https://appshunter.io/developer/1707864476) | [BIMBI WORLDWIDE](https://appshunter.io/developer/1636662066) |

## What reviewers say

### PLANETARIUM

[App page](https://appshunter.io/ios/app/planetarium/id1532715462)

Discover the Solar System with this educational app. Explore planets, land on points of interest to learn more, and test your knowledge with quizzes. Embark on a cosmic journey and learn about our celestial neighbors.

**Highlights:** Explore the Solar System, Learn about planets, Interactive landing points, Knowledge-testing quizzes, Educational content

**In-app purchases:** none


### UNIVERSIKID

[App page](https://appshunter.io/ios/app/universikid/id1636662064)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| URBAN PLANNING | $12.99 | one-time |
| LITTLE ARCHITECTS | $12.99 | one-time |
| PRODUCT DESIGN | $12.99 | one-time |
| JAPANESE MYTHOLOGY | $12.99 | one-time |
| MONOLINE CALLIGRAPHY 1 | $12.99 | one-time |
| PREHISTORIC ANIMALS | $12.99 | one-time |
| PREHISTORIC MAN | $12.99 | one-time |
| YOKAI | $12.99 | one-time |
| MONOLINE CALLIGRAPHY 2 | $12.99 | one-time |
| DUOLINE CALLIGRAPHY | $12.99 | one-time |


## Frequently asked questions

### Is PLANETARIUM free?

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

### Is UNIVERSIKID free?

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

### Do PLANETARIUM or UNIVERSIKID have ads?

Neither PLANETARIUM nor UNIVERSIKID shows ads.

### Which is updated more often, PLANETARIUM or UNIVERSIKID?

PLANETARIUM ships an update every 49 months, and UNIVERSIKID every 2 weeks. Most recently, PLANETARIUM was updated on November 3, 2026 and UNIVERSIKID on November 3, 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.*