# Decibel Meter-measure db level — Frequency Spectrum Analyzer

> Mobile application that functions as a professional decibel meter and noise analyzer. (iPhone/iPad app by 文波 曾.)

- Source: https://appshunter.io/ios/app/decibel-meter-measure-db-level/id1274038012 (this page in markdown: same URL + `.md`)
- Developer: [文波 曾](https://appshunter.io/developer/1557199654)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.30/5 from 905 App Store ratings · 88 written reviews indexed
- Age rating: 4+
- Requires: iOS 13 · 107 MB
- Languages: Russian, Vietnamese, American English, Dutch, Indonesian, European Spanish, Korean, Malay, German (Germany), Brazilian Portuguese and 5 more
- Released: 2017-08-25
- Data updated: 2026-08-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/decibel-meter-measure-db-level/id1274038012/reviews.md

## What is Decibel Meter?

The decibel meter 3 is shocking!

This time, your mobile phone is a professional decibel testing instrument that can provide you with noise detection anytime, anywhere.

Decibel Meter 3 Features:
- Brand new military-grade algorithm
- Brand new UI page design
- Brand new noise rendering animation
- Brand new professional-level GB weighted detection engine
- Brand new noise recording capability
- New professional-grade noise classification system
- Brand new AI real-time ambient noise source visualization engine
- Brand new noise dosimeter we continue to pay attention to your health

More features will be launched in subsequent versions, so stay tuned!

*Note: Although we provide high-precision algorithms, due to the limitations of hardware specifications of mobile devices such as mobile phones, it cannot completely replace professional equipment. The data is for reference only.


Get subscription content:
1. Pure and ad-free
2. The decibel test is more sensitive and accurate
3. Free access to all toolkits

*Our standard subscription options are:
Provide continuous subscription after VIP free trial, VIP continuous weekly subscription, VIP continuous monthly subscription, and VIP continuous subscription annual subscription options. During the subscription period, you can permanently say goodbye to the interruption of advertisements; the decibel test is more sensitive and accurate; all toolkits are used for free; the priority experience of more functions is obtained.

* Subscription fees will be charged to your iTunes account at confirmation of purchase and at the beginning of each renewal cycle. Subscriptions that include a free trial period will automatically renew to a paid subscription. You can cancel your subscription or free trial in iTunes settings at least 24 hours before the end of the free trial period. Cancellation of subscription will take effect after the last day of the current subscription period. Once the cancellation of subscription takes effect, your subscription service rights will become invalid.

Privacy Policy: ttps://pages.flycricket.io/fen-bei-ce-shi-yi/privacy.html
User Agreement: https://pages.flycricket.io/fen-bei-ce-shi-yi/terms.html

## Key features

- Military-grade algorithm
- Professional GB weighted detection
- Noise recording
- Noise classification system
- AI ambient noise visualization
- Noise dosimeter

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Monthly Subscription | $5.49 | per month |
| Free trail then subscribe | $1.99 | per 7 days |
| 分贝测试仪专业版 | $2.99 | per 3 months |
| 分贝测试仪专业版 | $4.49 | per 6 months |
| 分贝测试仪专业版 | $2.99 | per 7 days |
| 分贝仪专业版 | $2.99 | per 7 days |
| 分贝测试仪专业版 | $25.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove advertisement | $0.99 | one-time |
| 终身尊享权益 | $29.99 | one-time |


## What do users think of Decibel Meter?

Overall sentiment: mixed

**Pros**

- 👍 Accurate decibel measurements
- 🚀 Easy to use
- 💡 Useful for various applications (e.g. restaurants, heating systems)
- 🚀 Free version works great

**Cons**

- 🐛 Inaccurate readings at higher decibel levels
- 🔒 Requires location access for no apparent reason
- 🔒 Excessive ads and subscription model
- 🐛 Compatibility issues (e.g. no iPad support, Chinese EULA)

**Commonly reported bugs**

- Decibel readings capped at 90 dB
- Displaying incorrect address information
- Crashing or freezing on launch
- Showing 70 dB in a completely silent room

**Most requested features**

- Landscape mode for iPad
- Ability to detect sounds above 90 dB
- Option to disable ads or switch to a paid version

## Recent user reviews (10 of 88)

All indexed reviews: https://appshunter.io/ios/app/decibel-meter-measure-db-level/id1274038012/reviews.md

### 5/5 — Okay App

*2025-08-25*

The app itself is pretty solid the translation is a bit rough but other than that a good app would recommend

### 5/5 — Ethan

*2025-07-23*

This is one of the most best decibel meter apps I have ever had because I tried it with the songs I have on and it works so well!!

### 4/5 — It good s

*2025-04-13, version 3.5*

Lowd

### 1/5 — How to cancel?

*2025-01-07*

The app might be ok. Not much English, though. No explanation on how to cancel, either. Def not worth even trying as there is no way to check it out without subscribing.

### 1/5 — Decibel measuring

*2024-08-31*

Doesn’t seem to work.

### 5/5 — Very good

*2024-06-19*

Very accurate

### 2/5 — 简评

*2024-06-13, version 3.4*

应用界面不好用。分贝数：有瞬时分贝数和平均分贝数，目前的界面不能体现这个差别。没有“停止测试”按钮，而提供“保存”和“重置两个强迫式选项。

### 3/5 — 误导付费订阅…

*2024-04-02*

三点问题：不能免费试用也会提示前三天免费，订阅时只能选连续包月，无法更换订阅方案或退款。订阅时显示的是“免费试用三天”，之前试用过一次卸载了，看到提示以为以为还能试用，结果订阅后直接扣款了，并且只能选包月选项，要35元。但是订阅后在苹果订阅可以看到其他周期，如14元一周的。这个软件没有任何客服和联系方式，无法退款？订阅完才在软件内看到协议，订阅的时候没有提示！！协议说的是取消订阅不会退款或按使用时间退剩余款。

### 4/5 — Use it for heating systems comparison

*2024-02-13*

👍🏻

### 4/5 — Cool app.

*2024-01-06*

Easy to use.

## Frequently asked questions about Decibel Meter

### What does this decibel meter app do?

This app transforms your mobile phone into a professional decibel testing instrument. It provides real-time noise detection and analysis, offering features like a military-grade algorithm, professional GB weighted detection, and noise recording capabilities.

### What are the key features of the decibel meter app?

Key features include a brand new military-grade algorithm, a professional-level GB weighted detection engine, noise recording capability, a professional-grade noise classification system, and an AI real-time ambient noise source visualization engine. It also functions as a noise dosimeter.

### How much does the decibel meter app cost?

The app offers a free version with in-app purchases for subscription content. Subscription options provide an ad-free experience, more sensitive and accurate decibel testing, and free access to all toolkits. Subscription fees are charged to your iTunes account.

### Is this app compatible with all mobile devices?

While the app provides high-precision algorithms, its accuracy is limited by the hardware specifications of mobile devices. It cannot completely replace professional equipment, and the data provided is for reference only.

### What are common use cases for this decibel meter app?

Common use cases include measuring noise levels in your environment for health and safety awareness, analyzing sound pollution, or for general curiosity about ambient noise. The app's features like noise classification and visualization aid in understanding sound sources.

## Version history (last 5 releases)

### 3.9.6 — 2026-07-09

-Some bugs have been optimized to improve the user experience.

### 3.9.5 — 2026-06-23

-Some bugs have been optimized to improve the user experience.

### 3.9.4 — 2026-06-18

-Some bugs have been optimized to improve the user experience.

### 3.9.3 — 2026-06-12

-Some bugs have been optimized to improve the user experience.

### 3.9.2 — 2026-06-08

-Some bugs have been optimized to improve the user experience.

## Apps similar to Decibel Meter

| 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 X PRO: dBA Noise Meter](https://appshunter.io/ios/app/decibel-x-pro-dba-noise-meter/id1257651611) | 4.7 (6,888) | $69.99 | Utilities |
| [Noise Guru: Decibel Meter](https://appshunter.io/ios/app/noise-guru-decibel-meter/id6444836813) | 4.6 (299) | Free | Utilities |
| [Decibel Meter Sound Level pro](https://appshunter.io/ios/app/decibel-meter-sound-level-pro/id6737704013) | 4.5 (28) | Free | Utilities |
| [Decibel Meter · Sound Analyzer](https://appshunter.io/ios/app/decibel-meter-sound-analyzer/id1624503658) | 4.7 (1,296) | Free | Utilities |

## More apps by 文波 曾

- [Thermometer-Simple thermometer](https://appshunter.io/ios/app/thermometer-simple-thermometer/id1263326166)
- [斗图表情-表情包大师gif制作神器](https://appshunter.io/ios/app/gif/id1558629740)

All apps by 文波 曾: https://appshunter.io/developer/1557199654

## Related topics

[decibel meter audio](https://appshunter.io/ios/topics/decibel-meter-audio) · [decibel budget](https://appshunter.io/ios/topics/decibel-budget) · [decibel x pro](https://appshunter.io/ios/topics/decibel-x-pro) · [decibel counting](https://appshunter.io/ios/topics/decibel-counting) · [measure decibels noise](https://appshunter.io/ios/topics/measure-decibels-noise)

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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 2026-08-24.*