# Sound Meter (Decibel) — Measure the noise level

> Measures and displays environmental noise levels in decibels with graphical and numerical data. (iPhone/iPad app by UniCom Technology.)

- Source: https://appshunter.io/ios/app/sound-meter-decibel/id1626613141 (this page in markdown: same URL + `.md`)
- Developer: [UniCom Technology](https://appshunter.io/developer/1270764210)
- Category: Utilities, Productivity
- Price: Free
- Rating: 4.50/5 from 3,079 App Store ratings · 169 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.1 · 8 MB
- Languages: American English
- Released: 2022-05-30
- Data updated: 2026-08-27
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/sound-meter-decibel/id1626613141/reviews.md

## What is Sound Meter (Decibel)?

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 line
* Save measured records


**Notes
Microphones in phone is aligned to human voice. The maximum values are limited by the device. Very loud sounds(over ~110 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

- Measures decibel values
- Displays noise reference
- Shows min/avg/max dB
- Graphical decibel display
- Saves measurement records

## What do users think of Sound Meter (Decibel)?

Overall sentiment: neutral

**Pros**

- 🚀 Works perfectly
- 👍 Easy to use and free
- 👍 Good simple UI
- 👍 Good basic sound level meter
- 👍 Very easy and simplified display
- 👍 Super convenient, very useful
- 👍 Accurate sound measurement

**Cons**

- 🐛 Spelling mistake ('quiet' spelled as 'quite')
- 🐛 Inaccurate readings compared to other apps
- 🐛 Requires a subscription for basic recording
- 🐛 Imprecise metering, not a reliable tool
- 🐛 Doesn't work in split screen
- 🐛 Poorly documented statistics

**Commonly reported bugs**

- Apple security alert displayed on a Google ad
- Readings are half of other apps
- Misspelled 'quiet' throughout the app

**Most requested features**

- Add option to prevent screen timeout
- Add landscape mode
- Improve accuracy and calibration

## Recent user reviews (10 of 169)

All indexed reviews: https://appshunter.io/ios/app/sound-meter-decibel/id1626613141/reviews.md

### 1/5 — Read 142db for my idling exhaust

*2026-08-13, version 1.5*

Not physically possible

### 1/5 — Likely AI Slop

*2026-08-11, version 1.5*

I tested this application in a quiet room and it reported an unrealistic 45 dBA for the noise level, and worse, the displayed average was not even calculated correctly.

### 2/5 — Can’t be right

*2026-07-05, version 1.5*

In the ocean the noise is in the dangerous level. Can’t be right

### 5/5 — 좋음

*2026-06-27*

데시벨이 잘돼고 좋아요

**Developer response:** 좋은 리뷰를 남겨주셔서 감사합니다! 앱의 데시벨 측정 기능을 만족스럽게 사용하고 계시다니 기쁩니다. 보내주신 응원에 감사드리며, 앞으로도 더 나은 서비스를 제공할 수 있도록 노력하겠습니다.

### 5/5 — Très bonne application gratuite

*2026-06-22*

Je cherchais une application pour une évaluation temporaire du bruit généré par un climatiseur. L’application a fait le job. Simple à utiliser et m’a bien dépanné

**Developer response:** Merci beaucoup pour votre avis ! Nous sommes ravis que l’application vous ait aidé à évaluer le bruit de votre climatiseur. Nous sommes heureux que vous l’ayez trouvée simple et pratique à utiliser. Merci pour votre soutien !

### 4/5 — Not very good

*2026-06-21, version 1.5*

Sometimes it is not very correct and my room is a quiet room but it is 70 or more

### 1/5 — Highly inaccurate

*2026-06-16*

While there is the ability to calibrate, it’s still very difficult to get an accurate reliable reading. Other apps without needing calibration performed better.

**Developer response:** Thank you for your feedback and for sharing your experience.

We’re sorry to hear that the calibration did not provide the level of accuracy you expected. Sound measurement can vary depending on device hardware and environmental conditions, which may affect consistency between different apps.

We appreciate your comparison and will take your comments into account as we continue improving accuracy and reliability. If you can share your device model and usage conditions, it will help us investigate further.

Thank you for helping us improve the app.

### 1/5 — 측정수준

*2026-06-09*

최악

**Developer response:** 피드백 감사합니다. 말씀해주신 내용은 더 나은 측정 정확도와 사용 경험을 위해 참고하겠습니다. 사용 중 불편한 점이 있다면 언제든지 알려주세요.

### 3/5 — Sprache

*2026-06-04*

man könnte noch unterschiedliche Sprachen möglich machen

**Developer response:** Vielen Dank für dein Feedback und den Vorschlag!

Die Unterstützung mehrerer Sprachen ist eine sehr gute Idee. Wir werden dies bei zukünftigen Verbesserungen der App berücksichtigen, um die Nutzung für mehr Nutzer zugänglicher zu machen.

Danke, dass du uns hilfst, die App zu verbessern.

### 1/5 — Sucks

*2026-05-30, version 1.5*

Me and my friend Coley tried this and it was not accurate. I was talking a little bit loud and it said I was 120 in danger but whenever we try doing it outside and screaming, it only went up to like 110. This thing is not accurate at all, and it does not work.

## Frequently asked questions about Sound Meter (Decibel)

### What does the Sound Meter app do?

The Sound Meter app measures and displays the decibel (dB) values of environmental noise. It presents this data through various visual formats like gauges, graphs, and numerical readouts, allowing users to understand the noise levels around them.

### What are the key features of this sound meter app?

Key features include indicating decibel levels by a gauge, displaying the current noise reference, showing minimum, average, and maximum decibel values, presenting decibels via a graph line, and the ability to save measured records for later review.

### Is this app free to use?

Yes, the app is free to use. However, it does display advertisements as part of its monetization model. There are no in-app purchases mentioned.

### How accurate are the decibel readings?

The accuracy of the readings can be limited by the phone's microphone, which is primarily aligned to human voice. Very loud sounds (over approximately 110 dB) may not be recognized accurately on most devices. It is recommended to use this app as an auxiliary tool and consider an actual sound level meter for more precise measurements.

### What are common use cases for a sound meter app?

Common use cases include checking noise levels in different environments (e.g., home, office, public spaces), identifying potential noise pollution, monitoring sound for personal awareness, or as a supplementary tool for audio-related tasks.

## Version history (last 5 releases)

### 1.5 — 2026-02-03

Fixed crash bugs

### 1.4 — 2025-09-09

Fixed crash bugs

### 1.3 — 2025-03-11

Fixed bugs

### 1.2 — 2024-11-05

Fixed crash bugs

### 1.1 — 2024-10-31

Fixed crash bugs

## Apps similar to Sound Meter (Decibel)

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Decibel X:dB Sound Level Meter](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923) | 4.6 (160,618) | Free | Utilities |
| [Decibel : dB sound level meter](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1227650795) | 4.6 (36,118) | Free | Utilities |
| [Decibel Metre (Sound Meter)](https://appshunter.io/ios/app/decibel-metre-sound-meter/id1590659820) | 4.5 (577) | Free | Utilities |
| [NIOSH Sound Level Meter](https://appshunter.io/ios/app/niosh-sound-level-meter/id1096545820) | 4.7 (16,645) | Free | Utilities |
| [Decibel X PRO: dBA Noise Meter](https://appshunter.io/ios/app/decibel-x-pro-dba-noise-meter/id1257651611) | 4.7 (6,888) | $69.99 | Utilities |
| [Decibel : dB Noise Level Meter](https://appshunter.io/ios/app/decibel-db-noise-level-meter/id6464403884) | 4.4 (250) | Free | Utilities |

## More apps by UniCom Technology

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All apps by UniCom Technology: https://appshunter.io/developer/1270764210

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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 2026-08-27.*