# Planet cards vs DIY Solar System

The clearest difference is in-app purchases: DIY Solar System at none against Planet cards's 1. DIY Solar System also leads on update cadence (every 2 months vs every 9 months) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Planet cards sells 1 one-off in-app purchase. DIY Solar System asks for nothing beyond the download.

Planet cards ships an update every 9 months, DIY Solar System every 2 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Planet cards | DIY Solar System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (17 ratings)](https://appshunter.io/ios/app/diy-solar-system/id1644242890/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 351 MB | 180 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Universo Body Planet S.L.](https://appshunter.io/developer/1373129960) | [The Lawrence Hall of Science](https://appshunter.io/developer/462994550) |

## What reviewers say

### Planet cards

[App page](https://appshunter.io/ios/app/planet-cards/id1596481804)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $19.99 | one-time |


### DIY Solar System

[App page](https://appshunter.io/ios/app/diy-solar-system/id1644242890)

Explore the solar system with interactive activities and an augmented reality planet walk. Learn about space travel, design a moon base, and identify celestial objects. Developed by leading science institutions, this app makes learning about space engaging for families and educators.

**Highlights:** Interactive space activities, Augmented reality planet walk, Design a moon base, Grow a space garden, Control a Mars rover, In or Out space game, NASA imagery

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Planet cards free?

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

### Is DIY Solar System free?

DIY Solar System is free to download, with no in-app purchases.

### Do Planet cards or DIY Solar System have ads?

Neither Planet cards nor DIY Solar System shows ads.

### Which is updated more often, Planet cards or DIY Solar System?

Planet cards ships an update every 9 months, and DIY Solar System every 2 months. Most recently, Planet cards was updated on October 25, 2026 and DIY Solar System on October 24, 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.*