# YYサイレンアラート vs ShinkansenView

The clearest difference is review sentiment: ShinkansenView at 100% against YYサイレンアラート's 50%. YYサイレンアラート's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. ShinkansenView sells 1 one-off in-app purchase. YYサイレンアラート asks for nothing beyond the download.

YYサイレンアラート ships an update monthly, ShinkansenView fortnightly. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | YYサイレンアラート | ShinkansenView |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 25 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [株式会社エクォス・リサーチ](https://appshunter.io/developer/1483010608) | [YUUSUKE HARASAWA](https://appshunter.io/developer/664328221) |

## 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


### ShinkansenView

[App page](https://appshunter.io/ios/app/shinkansenview/id6743909260)

Visualize Shinkansen train positions on a map in near real-time. Access detailed train information, view timetables, and filter by route. Supports multiple languages and allows for custom time simulations.

**Highlights:** Near real-time map display, Detailed train information, Real-time timetables, Multilingual support, Route filtering, Customizable time simulation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## 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 ShinkansenView free?

ShinkansenView is free to download, with in-app purchases available.

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

ShinkansenView 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 ShinkansenView?

YYサイレンアラート ships an update monthly, and ShinkansenView fortnightly. Most recently, YYサイレンアラート was updated on November 3, 2026 and ShinkansenView on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*