# Sound Meter - Noise Detector — Sound Meter, Decibel Meter

> Measures and displays environmental noise levels in decibels with graphical representations. (iPhone/iPad app by 颖 陈.)

- Source: https://appshunter.io/ios/app/sound-meter-noise-detector/id1150307854 (this page in markdown: same URL + `.md`)
- Developer: [颖 陈](https://appshunter.io/developer/467887541)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 2.00/5 from 5 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 43 MB
- Languages: American English
- Released: 2016-09-15
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sound-meter-noise-detector/id1150307854/reviews.md

## What is Sound Meter?

Sound Level Meter app is shows a decibel values by measure the environmental noise, displays measured dB values in various forms. You can experience tidy graphic design with high frame by this smart sound meter app.

Features:

- Indicates decibel by gauge
- Display the current noise reference
- Display min/avg/max decibel values
- Display decibel by graph
- Can calibrate the decibel for each devices

**Notes

Microphones in most devices are aligned to human voice. The maximum values are limited by the device. Very loud sounds(over ~90 dB) may not be recognized in most device. So please use it as just an auxiliary tools. If you need more accurate dB values, we recommend a actual sound level meter for that.

## Key features

- Indicates decibel by gauge
- Displays current noise reference
- Shows min/avg/max decibel values
- Visualizes decibel by graph
- Calibrates decibel for devices

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/sound-meter-noise-detector/id1150307854/reviews.md

### 1/5 — Not accurate

*2018-08-31*

Fixed at 60-65 no matter where I put my phone

### 2/5 — Meh

*2018-02-06*

Seems to work OK at first try. 
No idea how accurate it is. The details said it can be calibrated, but there is no option to do this.
Only works in portrait mode.
Gauge display could be 2-3 times larger on the screen, as huge space around it (this is on iPad - may be different on phone with smaller screen).

## Frequently asked questions about Sound Meter

### What is the Sound Meter app?

Sound Meter is a utility app that measures and displays environmental noise levels in decibels (dB). It provides various graphical representations of the sound data, including gauges and graphs, and shows minimum, average, and maximum dB values.

### Does Sound Meter have ads?

No, the Sound Meter app does not contain advertisements.

### How accurate is Sound Meter?

The app allows for calibration of decibel values for each device. However, it notes that microphones in most devices are optimized for human voice, and very loud sounds (over ~90 dB) may not be recognized accurately. It is recommended as an auxiliary tool.

### What devices does Sound Meter support?

Sound Meter is available for iPhone, iPad, and iPod devices.

### What is the age rating for Sound Meter?

The Sound Meter app has an age rating of 4+.

### When was Sound Meter last updated?

The latest version of Sound Meter was released on April 5, 2018.

### What is the user rating for Sound Meter?

Sound Meter has a rating of 2.0 stars from 5 ratings.

### Can Sound Meter measure very loud noises?

The app's ability to measure very loud sounds, over approximately 90 dB, is limited by the device's microphone. For highly accurate measurements of loud noises, a dedicated sound level meter is recommended.

## Version history (last 3 releases)

### 1.0.2 — 2018-04-05

This app has been updated by Apple to display the Apple Watch app icon.

- Bug fixed and performance improvement

### 1.0.1 — 2018-04-02

- Compatibility with iPhone X
- Bug fixed and performance improvement

### 1.0.0 — 2016-09-06

This update is signed with Apple’s latest signing certificate. No new features are included.

## Apps similar to Sound Meter

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Decibel Meter dB (Sound Meter)](https://appshunter.io/ios/app/decibel-meter-db-sound-meter/id1205186197) | 4.4 (1,220) | Free | Utilities |
| [Sound Meter - Decibel Pro](https://appshunter.io/ios/app/sound-meter-decibel-pro/id1603557612) | 4.3 (28) | Free | Utilities |
| [Sound Meter (SPL meter)](https://appshunter.io/ios/app/sound-meter-spl-meter/id1558634102) | — | $0.99 | Utilities |
| [Decibels: dB Sound Level Meter](https://appshunter.io/ios/app/decibels-db-sound-level-meter/id383207286) | 4.6 (221) | Free | Utilities |
| [Sound Meter (Decibel)](https://appshunter.io/ios/app/sound-meter-decibel/id1626613141) | 4.6 (2,631) | Free | Utilities |
| [Sound Meter HQ](https://appshunter.io/ios/app/sound-meter-hq/id1093419762) | 4.8 (327) | Free | Utilities |

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All apps by 颖 陈: https://appshunter.io/developer/467887541

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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 2026-06-01.*