# ATOS接近放送[山手線] vs OTOTETSU

The clearest difference is review sentiment: OTOTETSU at 93% against ATOS接近放送[山手線]'s 85%. ATOS接近放送[山手線]'s advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on June 9, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | ATOS接近放送[山手線] | OTOTETSU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (17 ratings)](https://appshunter.io/ios/app/ototetsu/id1557885726/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | 84.9% of reviews | **93.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 58 MB | 20 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuta Wakamatsu](https://appshunter.io/developer/1482594118) | [Hisato Takeuchi](https://appshunter.io/developer/1512764876) |

## What reviewers say

### ATOS接近放送[山手線]

[App page](https://appshunter.io/ios/app/atos/id1497739276)

This app recreates the ATOS arrival announcements for the Yamanote Line (inner loop). Users can select track number, train type, and destination to start arrival announcements, and track number and station melody for door closing announcements. It's designed for use with N gauge and Plarail toy trains.

**Highlights:** Simulates ATOS arrival announcements, Inner loop Yamanote Line, Select track, type, and destination, Simulates door closing announcements, Includes station melodies, Compatible with N gauge and Plarail

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

**In-app purchases:** none


### OTOTETSU

[App page](https://appshunter.io/ios/app/ototetsu/id1557885726)

This app simulates the characteristic sounds of electric trains, generated by inverters controlling motor torque and speed. Users can design sounds for imaginary trains by manipulating waveforms and motor sounds.

**Highlights:** Simulates electric train acceleration/deceleration sounds, Generates waveforms from inverters, Simulates motor sounds, Design imaginary train sounds, Customize torque and rotational speed effects

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

**In-app purchases:** none


## Frequently asked questions

### Is ATOS接近放送[山手線] free?

ATOS接近放送[山手線] is free to download, with no in-app purchases.

### Is OTOTETSU free?

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

### Do ATOS接近放送[山手線] or OTOTETSU have ads?

Neither ATOS接近放送[山手線] nor OTOTETSU shows ads.

### Which is updated more often, ATOS接近放送[山手線] or OTOTETSU?

ATOS接近放送[山手線] ships an update every 2 months, and OTOTETSU every 2 months. Most recently, ATOS接近放送[山手線] was updated on June 9, 2026 and OTOTETSU on September 25, 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.*