# 東日本通勤電車効果音 vs PrimeFactorizationGame

The clearest difference is ads: 東日本通勤電車効果音 at none against PrimeFactorizationGame'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.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 東日本通勤電車効果音 | PrimeFactorizationGame |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | Monthly |
| Size | 29 MB | 7 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Yuta Wakamatsu](https://appshunter.io/developer/1482594118) | [TomatoAppLab](https://appshunter.io/developer/1676711750) |

## What reviewers say

### 東日本通勤電車効果音

[App page](https://appshunter.io/ios/app/id6748645097)

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

**In-app purchases:** none


### PrimeFactorizationGame

[App page](https://appshunter.io/ios/app/primefactorizationgame/id6755812213)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 東日本通勤電車効果音 free?

東日本通勤電車効果音 is free to download, with no in-app purchases.

### Is PrimeFactorizationGame free?

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

### Do 東日本通勤電車効果音 or PrimeFactorizationGame have ads?

PrimeFactorizationGame shows ads; 東日本通勤電車効果音 does not.

### Which is updated more often, 東日本通勤電車効果音 or PrimeFactorizationGame?

東日本通勤電車効果音 ships an update monthly, and PrimeFactorizationGame monthly. Most recently, 東日本通勤電車効果音 was updated on October 24, 2026 and PrimeFactorizationGame on October 14, 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.*