Siren Maker vs OncallManager
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Siren Maker
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.
- Siren sound simulation
- Realistic police experience
- Interactive siren activation
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Play like real cops Play a siren and feel like real cops
OncallManager
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Being on call means you can’t leave home, but don’t you feel like others are surprisingly not at home? It’s a hassle to ask your manager to switch shifts, and you’re not even sure who’s at home... OncallManager solves these problems for you.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Siren Maker | OncallManager |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 51 months | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 57 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Asaf Berko | Hiroshi Matsueda |
In-app purchases
Siren Maker
No in-app purchases
OncallManager
No in-app purchases
Questions
Is Siren Maker free?
Is OncallManager free?
Do Siren Maker or OncallManager have ads?
Which is updated more often, Siren Maker or OncallManager?
Other comparisons
