# Math Challenge vs Core Tower Defense

The clearest difference is in-app purchases: Math Challenge at none against Core Tower Defense's 10. Math Challenge also leads on ads (none vs shown). Core Tower Defense's advantage is update cadence (every 2 months vs every 58 months) and iOS requirement (15.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Core Tower Defense sells 10 one-off in-app purchases. Math Challenge asks for nothing beyond the download.

Math Challenge ships an update every 58 months, Core Tower Defense every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Math Challenge | Core Tower Defense |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 58 months | **Every 2 months** |
| Size | 7 MB | 196 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Nazir Dogan](https://appshunter.io/developer/1048892607) | [MUHAMMED TAHA AKTAS](https://appshunter.io/developer/1700498547) |

## What reviewers say

### Math Challenge

[App page](https://appshunter.io/ios/app/math-challenge-math-game/id1091644334)

**Features:** macOS Compatibility

**In-app purchases:** none


### Core Tower Defense

[App page](https://appshunter.io/ios/app/core-tower-defense-zombie-td/id6456525413)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Compensator 5 | $0.99 | one-time |
| Titanium 5 | $1.99 | one-time |
| Blueprint 5 | $2.99 | one-time |
| Compensator 25 | $3.99 | one-time |
| Skill Point 11 | $5.99 | one-time |
| Life Core 11 | $5.99 | one-time |
| Titanium 25 | $7.99 | one-time |
| Blueprint 25 | $12.99 | one-time |
| Skill Point 130 | $49.99 | one-time |
| Life Core 130 | $49.99 | one-time |


## Frequently asked questions

### Is Math Challenge free?

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

### Is Core Tower Defense free?

Core Tower Defense is free to download, with in-app purchases available.

### Do Math Challenge or Core Tower Defense have ads?

Core Tower Defense shows ads; Math Challenge does not.

### Which is updated more often, Math Challenge or Core Tower Defense?

Math Challenge ships an update every 58 months, and Core Tower Defense every 2 months. Most recently, Math Challenge was updated on November 2, 2026 and Core Tower Defense on November 3, 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.*