# Simple Noise Meter — Sound meter for noise check

> Utility app measuring ambient sound levels in decibels. (iPhone/iPad app by NAOYA ONO.)

- Source: https://appshunter.io/ios/app/simple-noise-meter/id1630705039 (this page in markdown: same URL + `.md`)
- Developer: [NAOYA ONO](https://appshunter.io/developer/1530328146)
- Category: Utilities, Lifestyle
- Price: Free with in-app purchases
- Rating: 4.00/5 from 1 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 42 MB
- Languages: American English, Japanese
- Released: 2022-06-21
- Data updated: 2026-08-14
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/simple-noise-meter/id1630705039/reviews.md

## What is Simple Noise Meter?

Simple and easy-to-use noise level meter app.
It displays the noise level of your surroundings in decibels.

● How to use
Tap the “START” button to start measurement.
Tapping the “STOP” button pauses the measurement, and pressing the “START” button again resumes the measurement.
Reset can be done by tapping the button at the bottom of the screen.

● Notes
Smartphones are not equipped with the high-performance microphones found in actual noise meters.
Therefore, it may not be able to recognize very loud sound, or there may be an error with the actual sound level meter value.
Please use it as a supplementary tool only.

If you have an actual sound level meter, you can adjust the value to match your noise meter by using the calibration function in the app. To calibrate, tap the +- icon in the lower left corner of the screen to display the setting screen.

## Key features

- Real-time decibel measurement
- Start, stop, and reset functions
- Calibration for accuracy
- Supplementary measurement tool
- Easy-to-use interface

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Support Developer | $0.99 | one-time |
| Remove ads | $3.99 | one-time |


## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/simple-noise-meter/id1630705039/reviews.md

### 5/5 — 90dbにいかない

*2024-12-22*

たまたまかな

### 2/5 — 測定値の精度は悪い

*2024-02-19*

騒音計の専用機と比べて酷い時には20db以上高く表示される。
インストール後に何か事前設定必要なのでしょうか？

### 5/5 — 非常にシンプル

*2024-02-07*

すぐ使えました！欲しいデータのみ表示されます。

### 5/5 — 良い

*2023-06-01*

過不足なく良いUIでとても使いやすいです。
専門的な機能はいらないから、とにかく曝されている音の大きさが知りたい！という方におすすめです。

### 4/5 — 非常にわかりやすい使いやすい‼︎

*2023-04-30*

ほんとうにそれしか言えない

### 3/5 — 静かな環境には向かない

*2023-03-27*

iPhone13Proにて使用
計測機で30dB程度の環境ではこちらのアプリだと40dB以上の計測になり、誤差が激しく感じますが50dB超えの環境になると計測器との差をあまり感じなくなります
もしかするとiPhone本体の出す耳では聞こえないようなマイクの共振的なものや高調波か何かを拾ってしまっているのかもしれません
いっそ40dB以下は計測限界にでもして計測不能扱いで設定で正確性を担保しないけど表示できるようにするなどしたら良さそう
この手のアプリを使いたい場合は煩さを数値化したいなんて人が多い気がするのである程度正確に計測できる範囲内で運用できるようにしたらいいのではないかと

### 1/5 — dbが高く表示される気がする

*2022-11-13*

窓を閉め切った6畳ほどの部屋で、全く何も聞こえない状態ですが、30dbと表示されます。30dbのささやき声など発してません。10dbの息の音も出してません。

## Frequently asked questions about Simple Noise Meter

### What is Simple Noise Meter?

Simple Noise Meter is a utility app designed to measure ambient sound levels in decibels. It provides a straightforward way to monitor the noise in your surroundings.

### How accurate is Simple Noise Meter?

Smartphones are not equipped with the high-performance microphones found in actual noise meters. Therefore, Simple Noise Meter may not recognize very loud sounds or may have errors compared to professional equipment. It is intended as a supplementary tool.

### Can Simple Noise Meter be calibrated?

Yes, Simple Noise Meter features a calibration function. You can adjust the measured values to match your actual sound level meter by accessing the settings screen via the +- icon.

### What devices does Simple Noise Meter support?

Simple Noise Meter is available for iPhone and iPad devices.

### What is the age rating for Simple Noise Meter?

Simple Noise Meter has an age rating of 4+.

### When was Simple Noise Meter last updated?

The latest version of Simple Noise Meter was released on July 28, 2023.

### Does Simple Noise Meter have ads?

Yes, Simple Noise Meter contains advertisements.

### What is the user rating for Simple Noise Meter?

Simple Noise Meter has a rating of 4.0 stars based on one rating.

## Version history (last 5 releases)

### 1.3.0 — 2023-07-28

Performance improvements.

### 1.2.2 — 2022-11-05

Performance improvements.

### 1.2.0 — 2022-06-25

Added a paid plan to remove ads.

### 1.1.0 — 2022-06-23

1. Added a dark mode theme.
2. Bug fixes.

### 1.0 — 2022-06-21

No release notes.

## Apps similar to Simple Noise Meter

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Noise Guru: Decibel Meter](https://appshunter.io/ios/app/noise-guru-decibel-meter/id6444836813) | 4.6 (299) | Free | Utilities |
| [Sound Meter: dB Measurement](https://appshunter.io/ios/app/sound-meter-db-measurement/id1603059654) | 4.0 (7) | Free | Utilities |
| [dB Sound Meter](https://appshunter.io/ios/app/db-sound-meter/id629501834) | 2.0 (1) | Free | Utilities |

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All apps by NAOYA ONO: https://appshunter.io/developer/1530328146

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*