# Roller Math vs Knife Arms

The clearest difference is update cadence: Knife Arms at fortnightly against Roller Math's every 34 months. 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.

Roller Math ships an update every 34 months, Knife Arms fortnightly. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Roller Math | Knife Arms |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (4 ratings)](https://appshunter.io/ios/app/knife-arms/id6443764625/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 34 months | **Fortnightly** |
| Monetization | — | Ad-supported |
| Size | 54 MB | 81 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Marco Andreotti](https://appshunter.io/developer/1514019597) | [FUBU GAMES OYUN YAZILIM VE BILGI TEKNOLOJILERI TICARET LIMITED SIRKETI](https://appshunter.io/developer/1526018818) |

## What reviewers say

### Roller Math

[App page](https://appshunter.io/ios/app/roller-math/id1548283266)

**Features:** macOS Compatibility

**In-app purchases:** none


### Knife Arms

[App page](https://appshunter.io/ios/app/knife-arms/id6443764625)

Collect hands and defeat enemies on a platform to reach the finish line. Beat the final boss to win the game. This is a free-to-play mobile game.

**Highlights:** Collect hands, Defeat enemies, Platform-based gameplay, Boss battles, Reach the finish line

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Roller Math free?

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

### Is Knife Arms free?

Knife Arms is free to download, with no in-app purchases.

### Do Roller Math or Knife Arms have ads?

Both Roller Math and Knife Arms show ads.

### Which is updated more often, Roller Math or Knife Arms?

Roller Math ships an update every 34 months, and Knife Arms fortnightly. Most recently, Roller Math was updated on October 3, 2026 and Knife Arms on October 9, 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.*