# FAS vs 叫ぶモールス信号

The clearest difference is price: 叫ぶモールス信号 at Free against FAS's $3.99. 叫ぶモールス信号 also leads on update cadence (every 6 months vs every 95 months). FAS's advantage is ads (none vs shown) and iOS requirement (12.0 vs 14.0). On in-app purchases and device support there is nothing between them.

叫ぶモールス信号 is free to download; FAS costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FAS ships an update every 95 months, 叫ぶモールス信号 every 6 months. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | FAS | 叫ぶモールス信号 |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 10.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 95 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 52 MB | 111 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kaji Takatsugu](https://appshunter.io/developer/465688467) | [Yusuke Masuda](https://appshunter.io/developer/1578136233) |

## What reviewers say

### FAS

[App page](https://appshunter.io/ios/app/fas/id1149266961)

This app simulates various Japanese emergency vehicle sirens and voice announcements. It allows for volume adjustment of sirens and voice messages, and even lets you record custom announcements. The interface includes a flashing light effect.

**Highlights:** Simulates police, ambulance, and fire truck sirens, Includes voice announcements for emergency vehicles, Adjustable siren and voice volume, Record custom voice messages, Flashing light effect, Multiple siren and voice channels

**Features:** macOS Compatibility

**In-app purchases:** none


### 叫ぶモールス信号

[App page](https://appshunter.io/ios/app/id1618748581)

**In-app purchases:** none


## Frequently asked questions

### Is FAS free?

FAS costs $3.99, with no in-app purchases.

### Is 叫ぶモールス信号 free?

叫ぶモールス信号 is free to download, with no in-app purchases.

### Do FAS or 叫ぶモールス信号 have ads?

叫ぶモールス信号 shows ads; FAS does not.

### Which is updated more often, FAS or 叫ぶモールス信号?

FAS ships an update every 95 months, and 叫ぶモールス信号 every 6 months. Most recently, FAS was updated on November 2, 2026 and 叫ぶモールス信号 on October 27, 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.*