# The FOUR vs Martian Frontier

The clearest difference is in-app purchases: The FOUR at none against Martian Frontier's 10. The FOUR also leads on ads (none vs shown). Martian Frontier's advantage is update cadence (every 2 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Martian Frontier sells 10 one-off in-app purchases. The FOUR asks for nothing beyond the download.

The FOUR ships an update every 3 weeks, Martian Frontier every 2 days. Both last shipped on November 4, 2026.

## The numbers

| Metric | The FOUR | Martian Frontier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (19 ratings)](https://appshunter.io/ios/app/martian-frontier/id6740146979/reviews)** |
| Number of ratings | — | **19** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 219 MB | 218 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Korea Campus Crusade for Christ](https://appshunter.io/developer/434814361) | [Riddh Ramburuth](https://appshunter.io/developer/1788549547) |

## What reviewers say

### The FOUR

[App page](https://appshunter.io/ios/app/the-four-grid/id6737247213)

**In-app purchases:** none


### Martian Frontier

[App page](https://appshunter.io/ios/app/martian-frontier/id6740146979)

Engage in a sci-fi mining simulation on Mars. Extract resources, upgrade technology, and build a tycoon empire. Compete in multiplayer tournaments to become the galaxy's richest miner.

**Highlights:** Deep mining and upgrades, Powerful futuristic gadgets, Explore and expand Martian surface, Multiplayer mining tournaments, Endless strategic gameplay, Resource management

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20K Gems, 90 Supply Crates | $3.99 | one-time |
| 70K Gems | $6.99 | one-time |
| 110 Supply Crates | $6.99 | one-time |
| 70K Gems, 300 Supply Crates | $11.99 | one-time |
| 160K Gems | $13.99 | one-time |
| 275 Supply Crates | $13.99 | one-time |
| 160K Gems, 500 Supply Crates | $23.99 | one-time |
| 450K Gems | $34.99 | one-time |
| 800 Supply Crates | $34.99 | one-time |
| 450K Gems, 1000 Supply Crates | $59.99 | one-time |


## Frequently asked questions

### Is The FOUR free?

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

### Is Martian Frontier free?

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

### Do The FOUR or Martian Frontier have ads?

Martian Frontier shows ads; The FOUR does not.

### Which is updated more often, The FOUR or Martian Frontier?

The FOUR ships an update every 3 weeks, and Martian Frontier every 2 days. Most recently, The FOUR was updated on November 4, 2026 and Martian Frontier on November 4, 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.*