# Mutuafun vs Stiff/Arm

The clearest difference is iOS requirement: Mutuafun at 12.0 against Stiff/Arm's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mutuafun ships an update monthly, Stiff/Arm every 5 weeks. Both last shipped on October 6, 2026.

## The numbers

| Metric | Mutuafun | Stiff/Arm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (8 ratings)](https://appshunter.io/ios/app/mutuafun/id1668634309/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free | — |
| Size | 27 MB | 2 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hong Kong Grace Profit Technology Limited](https://appshunter.io/developer/1622933638) | [John Groe](https://appshunter.io/developer/1832050783) |

## What reviewers say

### Mutuafun

[App page](https://appshunter.io/ios/app/mutuafun/id1668634309)

Control your toys remotely via Bluetooth using this app. Select from multiple modes and adjust intensity for personalized experiences. Enjoy endless pleasure anytime, anywhere with this multilingual application.

**Highlights:** Bluetooth toy control, Multiple modes (10+1), Intensity adjustment, Animation for mode selection, Multilingual support

**Features:** macOS Compatibility

**In-app purchases:** none


### Stiff/Arm

[App page](https://appshunter.io/ios/app/stiffarm/id6749776674)

**In-app purchases:** none


## Frequently asked questions

### Is Mutuafun free?

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

### Is Stiff/Arm free?

Stiff/Arm is free to download, with no in-app purchases.

### Do Mutuafun or Stiff/Arm have ads?

Neither Mutuafun nor Stiff/Arm shows ads.

### Which is updated more often, Mutuafun or Stiff/Arm?

Mutuafun ships an update monthly, and Stiff/Arm every 5 weeks. Most recently, Mutuafun was updated on October 6, 2026 and Stiff/Arm on October 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.*