# Factor Fuse vs Math Devil

The clearest difference is in-app purchases: Math Devil at none against Factor Fuse's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Factor Fuse sells 3 one-off in-app purchases. Math Devil asks for nothing beyond the download.

Factor Fuse ships an update every 3 days, Math Devil daily. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Factor Fuse | Math Devil |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/math-devil-a-troll-level-game/id6742674755/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 days | **Daily** |
| Monetization | — | Ad-supported |
| Size | 187 MB | 134 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Khylle Lim](https://appshunter.io/developer/1765666121) | [友洲 陈](https://appshunter.io/developer/1037704522) |

## What reviewers say

### Factor Fuse

[App page](https://appshunter.io/ios/app/factor-fuse-number-master/id6670305040)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Bundle | $0.99 | one-time |
| Genius Bundle | $6.99 | one-time |
| Genius Bundle + (No Ads) | $6.99 | one-time |


### Math Devil

[App page](https://appshunter.io/ios/app/math-devil-a-troll-level-game/id6742674755)

A challenging 2D platformer that combines difficult levels with math-based puzzles. Navigate traps and solve problems involving various mathematical concepts to progress. It offers a unique test of both reflexes and intellect.

**Highlights:** Challenging 2D platformer gameplay, Math puzzle integration, Multiple difficulty levels, Variety of math concepts covered, Trap-filled environments

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

**In-app purchases:** none


## Frequently asked questions

### Is Factor Fuse free?

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

### Is Math Devil free?

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

### Do Factor Fuse or Math Devil have ads?

Both Factor Fuse and Math Devil show ads.

### Which is updated more often, Factor Fuse or Math Devil?

Factor Fuse ships an update every 3 days, and Math Devil daily. Most recently, Factor Fuse was updated on October 10, 2026 and Math Devil on October 13, 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.*