# Memory King vs Math Vs Undead

Memory King and Math Vs Undead both sit at 4.4 stars, but that hides the real split: 91% of Memory King's written reviews are positive against 48% of Math Vs Undead's. Memory King also leads on ads (none vs shown) and update cadence (every 3 months vs every 6 months). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Memory King sells 3 one-off in-app purchases and Math Vs Undead sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.4 for Memory King against 4.3 for Math Vs Undead. Both are backed by a comparable volume of ratings — 332 and 148 respectively. Written reviews are what separate them: 91% of Memory King's written reviews are positive against 48% of Math Vs Undead's.

Memory King ships an update every 3 months, Math Vs Undead every 6 months. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Memory King | Math Vs Undead |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (332 ratings)](https://appshunter.io/ios/app/memory-king-the-memory-cards-matching-game/id457508586/reviews)** | [4.3 (148 ratings)](https://appshunter.io/ios/app/math-vs-undead-math-game/id687283022/reviews) |
| Number of ratings | **332** | 148 |
| Positive reviews | **91.0% of reviews** | 48.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 39 MB | 133 MB |
| Requires iOS | **4.3** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Innovative Mobile Apps](https://appshunter.io/developer/420345423) | [Peaksel](https://appshunter.io/developer/618105376) |

## What reviewers say

### Memory King

[App page](https://appshunter.io/ios/app/memory-king-the-memory-cards-matching-game/id457508586)

This is a free memory card matching game suitable for all ages. It offers customizable gameplay with magic cards, single and multiplayer modes, and the ability to create your own card sets. Track player stats and enjoy multi-sensory learning options.

**Highlights:** Free to play, Up to four players, Magic cards for unique gameplay, Create custom memory cards, Adjustable game difficulty, Single and multiplayer modes, Player statistics tracking

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Animal Cards Expansion Pack | $0.99 | one-time |
| First Words Expansion Pack | $0.99 | one-time |
| Core Concepts Expansion Pack | $0.99 | one-time |

**What reviewers like**

- 👍 Great memory game
- 🎨 Customizable cards and sounds
- 🤖 Supports up to 4 players
- 🏫 Useful for therapy and education
- 🎉 Fun and engaging for all ages

**What reviewers complain about**

- 🐛 Compatibility issues with newer iOS versions
- 📏 Small card size for higher card counts
- 💰 Expensive to unlock all features

**Reported bugs**

- Cards not always opening when tapped
- Scores not always accurate due to tapping issues

**Requested features**

- Add more card categories (e.g. sight words, rhyming, numbers)
- Improve layout and card size for larger screens
- Provide a free version with fewer features


### 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 |


## Frequently asked questions

### Is Memory King free?

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

### Is Math Vs Undead free?

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

### Which has better reviews, Memory King or Math Vs Undead?

Memory King is rated higher. Memory King averages 4.4 out of 5 from 332 ratings, while Math Vs Undead averages 4.3 from 148 ratings.

### Do Memory King or Math Vs Undead have ads?

Math Vs Undead shows ads; Memory King does not.

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

Memory King ships an update every 3 months, and Math Vs Undead every 6 months. Most recently, Memory King was updated on November 8, 2026 and Math Vs Undead on November 6, 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.*