# コマッタ vs YYサイレンアラート

The clearest difference is ads: YYサイレンアラート at none against コマッタ's shown. On price, update cadence, 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.

コマッタ ships an update every 3 weeks, YYサイレンアラート monthly. The most recent releases landed on September 9, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | コマッタ | YYサイレンアラート |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6446321438/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | — | Free |
| Size | 41 MB | 6 MB |
| Requires iOS | 15.2 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Toshiyuki Susa](https://appshunter.io/developer/1556426603) | [株式会社エクォス・リサーチ](https://appshunter.io/developer/1483010608) |

## What reviewers say

### コマッタ

[App page](https://appshunter.io/ios/app/id6446321438)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### YYサイレンアラート

[App page](https://appshunter.io/ios/app/yy/id6450823634)

This utility app visualizes important sounds like sirens and alarms, alerting users through visual cues and vibrations. It helps individuals who have difficulty hearing these sounds or want to be more aware of their auditory environment. The app detects various sounds, from emergency vehicles to everyday noises.

**Highlights:** Visualizes siren sounds, Alerts via display and vibration, Detects emergency vehicle sounds, Recognizes car horns and bicycle bells, Identifies fire alarms and intercoms, Visualizes speech, music, and breaking glass sounds

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is コマッタ free?

コマッタ is free to download, with no in-app purchases.

### Is YYサイレンアラート free?

YYサイレンアラート is free to download, with no in-app purchases.

### Do コマッタ or YYサイレンアラート have ads?

コマッタ shows ads; YYサイレンアラート does not.

### Which is updated more often, コマッタ or YYサイレンアラート?

コマッタ ships an update every 3 weeks, and YYサイレンアラート monthly. Most recently, コマッタ was updated on September 9, 2026 and YYサイレンアラート on August 16, 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.*