# Mars Terraforming Project vs AsteroTrack

The clearest difference is in-app purchases: AsteroTrack at none against Mars Terraforming Project's 2. Mars Terraforming Project's advantage is update cadence (daily vs every 17 months) and iOS requirement (12.0 vs 18.1). On price, ads and device support there is nothing between them.

Both are free to download. Mars Terraforming Project sells 2 in-app purchases, starting at $4.99 per month. AsteroTrack asks for nothing beyond the download.

Mars Terraforming Project ships an update daily, AsteroTrack every 17 months. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Mars Terraforming Project | AsteroTrack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mars-terraforming-project/id6738961017/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 17 months |
| Monetization | Freemium | — |
| Size | 42 MB | 2 MB |
| Requires iOS | **12.0** | 18.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Madhanrajan Varadharajan](https://appshunter.io/developer/1047714662) | [Jose Gea](https://appshunter.io/developer/869882203) |

## What reviewers say

### Mars Terraforming Project

[App page](https://appshunter.io/ios/app/mars-terraforming-project/id6738961017)

Explore the science and engineering behind colonizing Mars. Engage in AI-driven narrative adventures that adapt to your choices, offering a unique way to learn about transforming the Red Planet into a habitable world.

**Highlights:** A-Z step-by-step terraforming tutorials, AI-generated D&D style Mars games, Customizable AI game prompts and actions, Educational content on science and engineering, Narrative-driven space adventures

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro Monthly | $4.99 | per month |
| Unlock the annual pro access | $19.99 | per year |


### AsteroTrack

[App page](https://appshunter.io/ios/app/asterotrack/id6739775100)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mars Terraforming Project free?

Mars Terraforming Project is free to download, with in-app purchases available.

### Is AsteroTrack free?

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

### Do Mars Terraforming Project or AsteroTrack have ads?

Neither Mars Terraforming Project nor AsteroTrack shows ads.

### Which is updated more often, Mars Terraforming Project or AsteroTrack?

Mars Terraforming Project ships an update daily, and AsteroTrack every 17 months. Most recently, Mars Terraforming Project was updated on October 10, 2026 and AsteroTrack on October 14, 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.*