# DIY Solar System vs Teia

The clearest difference is review sentiment: DIY Solar System at 100% against Teia's 0%. DIY Solar System also leads on rating (4.5 vs 3.7) and in-app purchases (none vs 1). On price, ratings volume, ads and device support there is nothing between them.

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

DIY Solar System holds the better App Store score, 4.5 against 3.7. Both are backed by a comparable volume of ratings — 17 and 7 respectively. Written reviews point the same way: 100% of DIY Solar System's written reviews are positive against 0% of Teia's.

DIY Solar System ships an update every 2 months, Teia every 10 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | DIY Solar System | Teia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (17 ratings)](https://appshunter.io/ios/app/diy-solar-system/id1644242890/reviews)** | [3.7 (7 ratings)](https://appshunter.io/ios/app/teia-3d-solar-system/id1672118518/reviews) |
| Number of ratings | **17** | 7 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 180 MB | 615 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Lawrence Hall of Science](https://appshunter.io/developer/462994550) | [Himalaya Computing](https://appshunter.io/developer/1205321932) |

## What reviewers say

### 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


### Teia

[App page](https://appshunter.io/ios/app/teia-3d-solar-system/id1672118518)

Explore the solar system with realistic 3D models of planets and their moons. Discover fascinating facts and localized curiosities on planetary surfaces, presented by astronomy experts. Immerse yourself in detailed visuals that make you feel like you're visiting each celestial body.

**Highlights:** Realistic 3D solar system models, Localized surface curiosities, Expert-developed astronomical content, Detailed planetary visuals, Information on Mercury, Venus, Earth, Moon, Mars, Jupiter, Saturn, Uranus, Neptune, Over 40 pages of structured content

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Package | $5.99 | one-time |


## Frequently asked questions

### Is DIY Solar System free?

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

### Is Teia free?

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

### Which has better reviews, DIY Solar System or Teia?

DIY Solar System is rated higher. DIY Solar System averages 4.5 out of 5 from 17 ratings, while Teia averages 3.7 from 7 ratings.

### Do DIY Solar System or Teia have ads?

Neither DIY Solar System nor Teia shows ads.

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

DIY Solar System ships an update every 2 months, and Teia every 10 months. Most recently, DIY Solar System was updated on October 24, 2026 and Teia on October 27, 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.*