# Save the Mars vs Open Space Game

The clearest difference is in-app purchases: Save the Mars at none against Open Space Game's 8. Save the Mars also leads on iOS requirement (6.0 vs 17.5). On price, ads and device support there is nothing between them.

Both are free to download. Open Space Game sells 8 in-app purchases, starting at $4.99 per month. Save the Mars asks for nothing beyond the download.

## The numbers

| Metric | Save the Mars | Open Space Game |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/open-space-game/id1499913239/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | — |
| Monetization | — | Free with in-app purchases |
| Size | 53 MB | 208 MB |
| Requires iOS | **6.0** | 17.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Han Dol Kim](https://appshunter.io/developer/1171642129) | [GreenRobot LLC](https://appshunter.io/developer/288448838) |

## What reviewers say

### Save the Mars

[App page](https://appshunter.io/ios/app/save-the-mars/id1159420350)

**Features:** macOS Compatibility

**In-app purchases:** none


### Open Space Game

[App page](https://appshunter.io/ios/app/open-space-game/id1499913239)

Explore celestial bodies like the Moon and Mars, mine for resources, and use a replicator to create custom objects. Earn virtual currency daily by owning in-game spheres and items. Engage in mini-games and connect with other players.

**Highlights:** Explore Moon and Mars, Mine for minerals, Text-based object creation, Earn virtual currency, Play mini-games, Leaderboard, Spaceship customization

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade To Premium | $4.99 | per month |
| Claim Another Moon Sphere | $0.99 | one-time |
| Upgrade Max Energy | $0.99 | one-time |
| Refill Energy To Max | $0.99 | one-time |
| Upgrade Cargo Limit +1,000kg | $0.99 | one-time |
| Upgrade Passenger Limit +1 | $0.99 | one-time |
| Small Mineral Pack | $0.99 | one-time |
| Large Mineral Pack | $2.99 | one-time |


## Frequently asked questions

### Is Save the Mars free?

Save the Mars is free to download, with no in-app purchases.

### Is Open Space Game free?

Open Space Game is free to download, with in-app purchases available.

### Do Save the Mars or Open Space Game have ads?

Neither Save the Mars nor Open Space Game shows ads.

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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.*