# Noise Recorder vs Plain｜騒音を検知して環境音を自動再生

The clearest difference is in-app purchases: Plain｜騒音を検知して環境音を自動再生 at none against Noise Recorder's 2. Plain｜騒音を検知して環境音を自動再生 also leads on update cadence (weekly vs every 5 months). Noise Recorder's advantage is iOS requirement (17.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. Noise Recorder sells 2 in-app purchases, starting at $0.99 per month. Plain｜騒音を検知して環境音を自動再生 asks for nothing beyond the download.

Noise Recorder ships an update every 5 months, Plain｜騒音を検知して環境音を自動再生 weekly. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Noise Recorder | Plain｜騒音を検知して環境音を自動再生 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Size | 5 MB | 12 MB |
| Requires iOS | **17.0** | 26.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [凯 郭](https://appshunter.io/developer/1865313098) | [KIICHI STUDIO](https://appshunter.io/developer/1855811809) |

## What reviewers say

### Noise Recorder

[App page](https://appshunter.io/ios/app/noise-recorder-pro/id6757255339)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| One-time purchase | $7.99 | one-time |


### Plain｜騒音を検知して環境音を自動再生

[App page](https://appshunter.io/ios/app/plain/id6761727598)

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

**In-app purchases:** none


## Frequently asked questions

### Is Noise Recorder free?

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

### Is Plain｜騒音を検知して環境音を自動再生 free?

Plain｜騒音を検知して環境音を自動再生 is free to download, with no in-app purchases.

### Do Noise Recorder or Plain｜騒音を検知して環境音を自動再生 have ads?

Neither Noise Recorder nor Plain｜騒音を検知して環境音を自動再生 shows ads.

### Which is updated more often, Noise Recorder or Plain｜騒音を検知して環境音を自動再生?

Noise Recorder ships an update every 5 months, and Plain｜騒音を検知して環境音を自動再生 weekly. Most recently, Noise Recorder was updated on October 25, 2026 and Plain｜騒音を検知して環境音を自動再生 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.*