# Math Vs Undead vs Suji

The clearest difference is iOS requirement: Math Vs Undead at 13.0 against Suji's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Math Vs Undead sells 1 one-off in-app purchase and Suji sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Math Vs Undead ships an update every 6 months, Suji every 3 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Math Vs Undead | Suji |
| --- | --- | --- |
| 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 | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free with in-app purchases | — |
| Size | 133 MB | 10 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Peaksel](https://appshunter.io/developer/618105376) | [Anh Phong](https://appshunter.io/developer/1739360024) |

## 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 |


### Suji

[App page](https://appshunter.io/ios/app/suji-sudoku-trainer/id6759955866)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Theme Bundle | $1.99 | one-time |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Math Vs Undead free?

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

### Is Suji free?

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

### Do Math Vs Undead or Suji have ads?

Both Math Vs Undead and Suji show ads.

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

Math Vs Undead ships an update every 6 months, and Suji every 3 months. Most recently, Math Vs Undead was updated on November 2, 2026 and Suji on October 31, 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.*