# Project Planet Space vs 3D Solar System Tour

The clearest difference is in-app purchases: Project Planet Space at none against 3D Solar System Tour's 1. Project Planet Space also leads on ads (none vs shown). 3D Solar System Tour's advantage is update cadence (every 3 weeks vs every 25 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 3D Solar System Tour sells 1 one-off in-app purchase. Project Planet Space asks for nothing beyond the download.

Project Planet Space ships an update every 25 months, 3D Solar System Tour every 3 weeks. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Project Planet Space | 3D Solar System Tour |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/project-planet-space/id6499347273/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 25 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 2 MB | 74 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Miroslav Hanzelka](https://appshunter.io/developer/1653768748) | [Takashi Imamura](https://appshunter.io/developer/1801902689) |

## What reviewers say

### Project Planet Space

[App page](https://appshunter.io/ios/app/project-planet-space/id6499347273)

Explore our solar system with an interactive map. Discover planetary gravity, temperatures, and atmospheric data. Calculate your weight on other worlds and learn fascinating space facts.

**Highlights:** Interactive solar system map, Personalized weight and age calculations, Detailed planetary data widgets, Multi-language support, Metric/Imperial unit switching, Cosmic museum aesthetic, Real astronomical data integration

**Features:** macOS Compatibility

**In-app purchases:** none


### 3D Solar System Tour

[App page](https://appshunter.io/ios/app/3d-solar-system-tour/id6755645976)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $5.00 | one-time |


## Frequently asked questions

### Is Project Planet Space free?

Project Planet Space is free to download, with no in-app purchases.

### Is 3D Solar System Tour free?

3D Solar System Tour is free to download, with in-app purchases available.

### Do Project Planet Space or 3D Solar System Tour have ads?

3D Solar System Tour shows ads; Project Planet Space does not.

### Which is updated more often, Project Planet Space or 3D Solar System Tour?

Project Planet Space ships an update every 25 months, and 3D Solar System Tour every 3 weeks. Most recently, Project Planet Space was updated on November 4, 2026 and 3D Solar System Tour on October 30, 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.*