# 東日本特急効果音 vs coro

The clearest difference is in-app purchases: 東日本特急効果音 at none against coro's 2. coro's advantage is update cadence (every 10 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. coro sells 2 in-app purchases, starting at $7.99 per month. 東日本特急効果音 asks for nothing beyond the download.

東日本特急効果音 ships an update every 3 weeks, coro every 10 days. The most recent releases landed on September 14, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 東日本特急効果音 | coro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Size | 42 MB | 66 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yuta Wakamatsu](https://appshunter.io/developer/1482594118) | [EMU KAMADA](https://appshunter.io/developer/1869808349) |

## What reviewers say

### 東日本特急効果音

[App page](https://appshunter.io/ios/app/id6744698237)

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

**In-app purchases:** none


### coro

[App page](https://appshunter.io/ios/app/coro-ai/id6768072151)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| coro Pro (Monthly) | $7.99 | per month |
| coro Pro (Yearly) | $69.99 | per year |


## Frequently asked questions

### Is 東日本特急効果音 free?

東日本特急効果音 is free to download, with no in-app purchases.

### Is coro free?

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

### Do 東日本特急効果音 or coro have ads?

Neither 東日本特急効果音 nor coro shows ads.

### Which is updated more often, 東日本特急効果音 or coro?

東日本特急効果音 ships an update every 3 weeks, and coro every 10 days. Most recently, 東日本特急効果音 was updated on September 14, 2026 and coro on September 20, 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.*