# Mars vs Radiation Runner

The clearest difference is review sentiment: Mars at 91% against Radiation Runner's 30%. Mars also leads on ratings volume (22K vs 308) and rating (4.8 vs 4.6). Radiation Runner's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Mars sells 10 one-off in-app purchases. Radiation Runner asks for nothing beyond the download.

Mars holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Mars has 22K ratings behind it against 308, so its average is the more settled of the two. Written reviews point the same way: 91% of Mars's written reviews are positive against 30% of Radiation Runner's.

Mars ships an update monthly, Radiation Runner every 2 weeks. The most recent releases landed on September 25, 2026 and August 5, 2026 respectively.

## The numbers

| Metric | Mars | Radiation Runner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (22K ratings)](https://appshunter.io/ios/app/mars-mars/id1108964305/reviews)** | [4.6 (308 ratings)](https://appshunter.io/ios/app/radiation-runner/id1489312318/reviews) |
| Number of ratings | **22K** | 308 |
| Positive reviews | **90.7% of reviews** | 30.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 256 MB | 152 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Pomelo Games](https://appshunter.io/developer/899606172) | [Little Star Games Oy](https://appshunter.io/developer/1495212047) |

## What reviewers say

### Mars

[App page](https://appshunter.io/ios/app/mars-mars/id1108964305)

Embark on a thrilling space adventure as a volunteer on a mission to Mars. Pilot a jetpack to explore the Martian surface, capture unique selfies, and navigate the challenges of interplanetary travel. Prove the doubters wrong and make history on this groundbreaking expedition.

**Highlights:** Explore Mars on a jetpack, Take selfies on Mars, Avoid Rapid Unscheduled Disassemblies, Discover Martian sights, Volunteer for a space mission

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arnold | $0.99 | one-time |
| Little Martha | $0.99 | one-time |
| Marselot | $0.99 | one-time |
| Nigiri | $0.99 | one-time |
| Ufo | $0.99 | one-time |
| Discman | $0.99 | one-time |
| Kestrel 5 | $0.99 | one-time |
| Eagle | $0.99 | one-time |
| Stephen | $3.99 | one-time |
| El Dorado | $3.99 | one-time |

**What reviewers like**

- 🚀 Simple and addictive gameplay
- 👍 Relaxing and calming experience
- 👍 Variety of unique characters with different themes
- 👍 Optional ads that provide rewards
- 👍 Offline playability

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 🔁 Repetitive and can get boring over time
- 🔁 Lack of difficulty progression
- 🔁 Duplicate character unlocks can be frustrating

**Reported bugs**

- Crashes when taking selfies
- Streak resets when returning to a previous level
- Inconsistent controls and fuel usage

**Requested features**

- Add new planets and environments to explore
- Introduce different gameplay modes (e.g., time trials, challenges)
- Allow players to customize platforms and backgrounds
- Implement a way to revisit previous levels


### Radiation Runner

[App page](https://appshunter.io/ios/app/radiation-runner/id1489312318)

Navigate a quantum universe by shrinking smaller and smaller, blasting through atomic environments. Master physics-bending gameplay with simple one-tap controls and an arsenal of futuristic weapons. The fate of the world depends on your ability to survive high radiation levels.

**Highlights:** Physics-bending gameplay, One-tap controls, Shrink mechanics, Atomic environments, Laser guns and plasma blasters, Addictive gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mars free?

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

### Is Radiation Runner free?

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

### Which has better reviews, Mars or Radiation Runner?

Mars is rated higher. Mars averages 4.8 out of 5 from 22K ratings, while Radiation Runner averages 4.6 from 308 ratings.

### Do Mars or Radiation Runner have ads?

Mars shows ads; Radiation Runner does not.

### Which is updated more often, Mars or Radiation Runner?

Mars ships an update monthly, and Radiation Runner every 2 weeks. Most recently, Mars was updated on September 25, 2026 and Radiation Runner on August 5, 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.*