# Siren Maker vs OncallManager

The clearest difference is ads: OncallManager at none against Siren Maker's shown. OncallManager also leads on update cadence (every 5 days vs every 51 months). Siren Maker's advantage is iOS requirement (12.0 vs 17.0). On price, 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.

Siren Maker ships an update every 51 months, OncallManager every 5 days. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Siren Maker | OncallManager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/siren-maker/id1318399111/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 51 months | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 57 MB | 16 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Asaf Berko](https://appshunter.io/developer/826819740) | [Hiroshi Matsueda](https://appshunter.io/developer/1656062331) |

## What reviewers say

### Siren Maker

[App page](https://appshunter.io/ios/app/siren-maker/id1318399111)

Simulate the experience of playing as a police officer by activating siren sounds. This application allows users to feel like real law enforcement officers through its interactive siren feature.

**Highlights:** Siren sound simulation, Realistic police experience, Interactive siren activation

**Features:** macOS Compatibility

**In-app purchases:** none


### OncallManager

[App page](https://appshunter.io/ios/app/oncallmanager/id6739290146)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Siren Maker free?

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

### Is OncallManager free?

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

### Do Siren Maker or OncallManager have ads?

Siren Maker shows ads; OncallManager does not.

### Which is updated more often, Siren Maker or OncallManager?

Siren Maker ships an update every 51 months, and OncallManager every 5 days. Most recently, Siren Maker was updated on October 4, 2026 and OncallManager on October 10, 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.*