# YYサイレンアラート vs Vehicle Identification

The clearest difference is ads: YYサイレンアラート at none against Vehicle Identification's shown. Vehicle Identification's advantage is update cadence (fortnightly vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

YYサイレンアラート ships an update monthly, Vehicle Identification fortnightly. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | YYサイレンアラート | Vehicle Identification |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | — |
| Size | 6 MB | 36 MB |
| Requires iOS | **15.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [株式会社エクォス・リサーチ](https://appshunter.io/developer/1483010608) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### 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


### Vehicle Identification

[App page](https://appshunter.io/ios/app/vehicle-identification/id6738829668)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### 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.

### Is Vehicle Identification free?

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

### Do YYサイレンアラート or Vehicle Identification have ads?

Vehicle Identification shows ads; YYサイレンアラート does not.

### Which is updated more often, YYサイレンアラート or Vehicle Identification?

YYサイレンアラート ships an update monthly, and Vehicle Identification fortnightly. Most recently, YYサイレンアラート was updated on October 10, 2026 and Vehicle Identification on October 3, 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.*