# Mars vs OBRII

The clearest difference is iOS requirement: OBRII at 13.0 against Mars's 15.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Mars sells 3 one-off in-app purchases and OBRII sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Mars | OBRII |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (26 ratings)](https://appshunter.io/ios/app/mars-the-arrival/id1458927524/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | 65.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 2.6 GB | 137 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Nyul](https://appshunter.io/developer/1458927523) | [Pavlo Shelyazhenko](https://appshunter.io/developer/1090245154) |

## What reviewers say

### Mars

[App page](https://appshunter.io/ios/app/mars-the-arrival/id1458927524)

Engage in a scientific simulation of establishing a Mars colony. Manage a small group of settlers, research technologies, and build a thriving settlement from a single module. Compete with other human-controlled colonies for success on the Red Planet.

**Highlights:** Scientific Mars settlement simulation, Research and development of technologies, Exploration of the Red Planet, Building and managing specialized structures, Managing settler types and life cycles, 3D view of settlement and Mars surface, Offline playability

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Logistics contract | $0.99 | one-time |
| MAA Gold Membership | $1.99 | one-time |
| Sponsors contract | $2.99 | one-time |


### OBRII

[App page](https://appshunter.io/ios/app/obrii/id1626637990)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads Remove | $2.99 | one-time |


## Frequently asked questions

### Is Mars free?

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

### Is OBRII free?

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

### Do Mars or OBRII have ads?

Both Mars and OBRII show 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.*