# Math Vs Undead vs Face Challenge

The clearest difference is in-app purchases: Face Challenge at none against Math Vs Undead's 1. Math Vs Undead's advantage is update cadence (every 6 months vs every 42 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Math Vs Undead sells 1 one-off in-app purchase. Face Challenge asks for nothing beyond the download.

Math Vs Undead ships an update every 6 months, Face Challenge every 42 months. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Math Vs Undead | Face Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (148 ratings)](https://appshunter.io/ios/app/math-vs-undead-math-game/id687283022/reviews)** | — |
| Number of ratings | **148** | — |
| Positive reviews | 48.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 6 months** | Every 42 months |
| Monetization | Free with in-app purchases | — |
| Size | 133 MB | 117 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Peaksel](https://appshunter.io/developer/618105376) | [EPRA GAMES PRODUCOES LTDA](https://appshunter.io/developer/1591649327) |

## What reviewers say

### Math Vs Undead

[App page](https://appshunter.io/ios/app/math-vs-undead-math-game/id687283022)

Engage in a thrilling math-based zombie shooter where solving arithmetic problems is your weapon. This game combines educational challenges with fun graphics to boost calculation speed and cognitive skills for all ages.

**Highlights:** Zombie shooter gameplay, Basic math operations (addition, subtraction, multiplication, division), 30 challenging levels, Improves calculation speed, Enhances cognitive functions, Eye-catching graphics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all levels | $4.99 | one-time |


### Face Challenge

[App page](https://appshunter.io/ios/app/face-challenge/id6448398708)

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

**In-app purchases:** none


## Frequently asked questions

### Is Math Vs Undead free?

Math Vs Undead is free to download, with in-app purchases available.

### Is Face Challenge free?

Face Challenge is free to download, with no in-app purchases.

### Do Math Vs Undead or Face Challenge have ads?

Both Math Vs Undead and Face Challenge show ads.

### Which is updated more often, Math Vs Undead or Face Challenge?

Math Vs Undead ships an update every 6 months, and Face Challenge every 42 months. Most recently, Math Vs Undead was updated on October 23, 2026 and Face Challenge on October 27, 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.*