# 計算カード Ext vs ZOMBIE MATHters

The clearest difference is update cadence: ZOMBIE MATHters at every 5 weeks against 計算カード Ext's every 4 months. ZOMBIE MATHters also leads on iOS requirement (9.0 vs 12.0). On price, ads, 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.

計算カード Ext ships an update every 4 months, ZOMBIE MATHters every 5 weeks. The most recent releases landed on September 20, 2026 and June 24, 2026 respectively.

## The numbers

| Metric | 計算カード Ext | ZOMBIE MATHters |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 11 MB | 178 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [ryo itou](https://appshunter.io/developer/1435019729) | [Naomi Sato](https://appshunter.io/developer/728471434) |

## What reviewers say

### 計算カード Ext

[App page](https://appshunter.io/ios/app/ext/id1436261840)

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

**In-app purchases:** none


### ZOMBIE MATHters

[App page](https://appshunter.io/ios/app/zombie-mathters/id1504347831)

Engage in an exciting math battle against approaching zombies. Solve addition, subtraction, and multiplication problems to defeat them. Compete globally on leaderboards and enjoy intellectual training that makes learning math fun for all ages.

**Highlights:** Math problem solving, Addition, subtraction, multiplication modes, Global leaderboards, Exciting gameplay for all ages, Intellectual training, Completely free to play

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 計算カード Ext free?

計算カード Ext is free to download, with no in-app purchases.

### Is ZOMBIE MATHters free?

ZOMBIE MATHters is free to download, with no in-app purchases.

### Do 計算カード Ext or ZOMBIE MATHters have ads?

Neither 計算カード Ext nor ZOMBIE MATHters shows ads.

### Which is updated more often, 計算カード Ext or ZOMBIE MATHters?

計算カード Ext ships an update every 4 months, and ZOMBIE MATHters every 5 weeks. Most recently, 計算カード Ext was updated on September 20, 2026 and ZOMBIE MATHters on June 24, 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.*