# Mustafai vs OnSiren

The clearest difference is update cadence: OnSiren at weekly against Mustafai's every 6 weeks. 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.

Mustafai ships an update every 6 weeks, OnSiren weekly. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Mustafai | OnSiren |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Size | 44 MB | 124 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Shoaib Hassan](https://appshunter.io/developer/1587350314) | [OnSiren Limited](https://appshunter.io/developer/6795174860) |

## What reviewers say

### Mustafai

[App page](https://appshunter.io/ios/app/mustafai/id6463597149)

**Features:** macOS Compatibility

**In-app purchases:** none


### OnSiren

[App page](https://appshunter.io/ios/app/onsiren/id6795977065)

**In-app purchases:** none


## Frequently asked questions

### Is Mustafai free?

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

### Is OnSiren free?

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

### Do Mustafai or OnSiren have ads?

Neither Mustafai nor OnSiren shows ads.

### Which is updated more often, Mustafai or OnSiren?

Mustafai ships an update every 6 weeks, and OnSiren weekly. Most recently, Mustafai was updated on October 5, 2026 and OnSiren on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*