# Scan Alien vs Monster School Pro Challenge

The clearest difference is ads: Scan Alien at none against Monster School Pro Challenge's shown. Scan Alien also leads on iOS requirement (6.0 vs 15.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Scan Alien | Monster School Pro Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/scan-alien/id591704206/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 28 months | — |
| Monetization | Free | — |
| Size | 10 MB | 181 MB |
| Requires iOS | **6.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [marge co., ltd.](https://appshunter.io/developer/331850369) | [Edgar Aibatov](https://appshunter.io/developer/1627903610) |

## What reviewers say

### Scan Alien

[App page](https://appshunter.io/ios/app/scan-alien/id591704206)

Become an airport security guard tasked with identifying and apprehending aliens disguised as humans. Use advanced scanners to detect anomalies in silhouettes and apprehend the extraterrestrial infiltrators.

**Highlights:** Alien detection gameplay, Airport security simulation, Silhouette scanning mechanics, Apprehend disguised aliens, Story-driven missions

**Features:** macOS Compatibility

**In-app purchases:** none


### Monster School Pro Challenge

[App page](https://appshunter.io/ios/app/monster-school-pro-challenge/id6743395820)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Scan Alien free?

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

### Is Monster School Pro Challenge free?

Monster School Pro Challenge is free to download, with no in-app purchases.

### Do Scan Alien or Monster School Pro Challenge have ads?

Monster School Pro Challenge shows ads; Scan Alien does not.

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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.*