# Decibel Meter - Sound Test — Live dB, history & PDF

> Mobile tool to measure and analyze ambient sound levels with reporting features. (iPhone/iPad app by 恒盛 程.)

- Source: https://appshunter.io/ios/app/decibel-meter-sound-test/id6764498347 (this page in markdown: same URL + `.md`)
- Developer: [恒盛 程](https://appshunter.io/developer/1533201832)
- Category: Utilities, Lifestyle
- Price: $0.99
- Age rating: 4+
- Requires: iOS 15.0 · 41 MB
- Languages: American English, Arabic, French (France), German (Germany), Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China), European Spanish and 2 more
- Released: 2026-04-30
- Data updated: 2026-10-02
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/decibel-meter-sound-test/id6764498347/reviews.md

## What is Decibel Meter?

Decibel Meter turns your phone into a quick way to check how loud a place really is.

Tap Start and you see the current sound level in dB with a live spectrum. End the session and the app keeps the average, peak and minimum values, the duration and the audio it recorded, so you can go back and compare later.

WHAT YOU CAN DO
• Live dB reading with a spectrum that reacts to the room
• Save a session together with its audio and stats
• Review every session in History and replay the recording
• Generate a PDF report from a session, or attach one you already have
• Take a scene photo with the time, place and reading printed on it
• Calibrate the offset so readings sit closer to a reference meter
• Compare a reading with familiar places: library, office, traffic, construction

WHERE PEOPLE USE IT
• Noise from renovation, machines or the road outside
• Talking to a neighbour, a landlord or a building manager with something concrete
• Checking whether a bedroom or study is quiet enough
• Comparing two rooms, or the same room before and after a change

EVERYTHING STAYS ON YOUR PHONE
Recordings, reports and photos are saved on the device. The app does not upload them.

PERMISSIONS
• Microphone: needed to measure sound. Keep the app in the foreground while measuring.
• Camera and location: used only when you take a scene photo with the reading on it.

PLEASE NOTE
Readings come from your phone's microphone, so they vary between devices and are affected by cases, dust and system audio processing. Calibration helps, but the numbers and reports are for reference and comparison only. They do not replace a calibrated sound level meter or a certified test report.

Free with ads.

## Key features

- Real-time decibel readings
- Spectrum analysis
- Environment status labels
- Session statistics
- Measurement history
- Audio playback
- Scene photo records
- PDF reports

## Recent user reviews (10 of 22)

All indexed reviews: https://appshunter.io/ios/app/decibel-meter-sound-test/id6764498347/reviews.md

### 5/5 — 建议优化保存

*2026-06-12*

功能不错，检测挺准的，但保存历史记录时偶尔卡顿，希望能再流畅点

### 5/5 — 很方便的小工具

*2026-06-12*

挺顺手的

### 5/5 — 很方便的小工具

*2026-06-12*

挺顺手的

### 5/5 — 还可以改进

*2026-06-12*

日常用着还行，分贝数值挺准的，但录音回放有时声音很小，希望能增加音量调节。整体来说是个实用的工具

### 5/5 — 历史记录比较实用

*2026-06-12*

经常在办公室测噪音，回看之前的数据挺方便的。读数校准也试了，调到参考声源后更准些。就是PDF报告的曲线图如果能再大点就好了

### 5/5 — 平时测测环境音够用了

*2026-06-12*

之前装修隔壁一直在吵，用这个录了数据生成报告发给物业，他们看了就没话说了。录音回放和照片一起保存很直观，推荐给有类似需求的朋友

### 5/5 — 挺顺手的

*2026-06-12*

挺好的，测噪音很方便

### 5/5 — 实用小工具

*2026-06-12*

平时测测家里噪音够用了，还能拍照留底，挺方便的

### 5/5 — 建议优化保存

*2026-06-12*

功能不错，检测挺准的，但保存历史时偶尔卡顿，希望能再流畅点

### 5/5 — 好评

*2026-06-08*

日常检测好帮手
评论内容

在家测孩子练琴音量，又能拍照又能回放录音，还能看频谱分析，比想象中实用。唯一希望以后能自定义报警阈值，不过目前已经够用。

## Frequently asked questions about Decibel Meter

### What is Decibel Meter used for?

Decibel Meter is used to measure ambient sound levels in real-time through your device's microphone. It helps you understand if your surroundings are quiet, comfortable, active, loud, or high-noise, and allows you to save measurement sessions.

### Does Decibel Meter have ads?

No, Decibel Meter does not contain advertisements. The app is ad-free, providing an uninterrupted user experience.

### What devices is Decibel Meter available on?

Decibel Meter is available on iPhone, iPad, and iPod devices. It is designed to work across these Apple platforms.

### How accurate are the Decibel Meter readings?

Readings may vary by device model, distance, obstruction, microphone condition, and surrounding environment. Measurements are for everyday reference and record-keeping, not for medical, legal, or industrial safety evidence.

### Can I save my measurements with Decibel Meter?

Yes, Decibel Meter allows you to save key data from each measurement session, including audio playback, scene photos, and generates PDF reports for later review and comparison.

### What is the price of Decibel Meter?

Decibel Meter is available for a one-time purchase price of $0.99. This purchase unlocks all features available in the current version.

### How often is Decibel Meter updated?

The app was last updated on May 7, 2026, indicating regular updates to improve functionality and compatibility. The current version is 1.7.3.

### What age rating does Decibel Meter have?

Decibel Meter has an age rating of 4+, making it suitable for a wide range of users. This rating suggests it contains no mature content.

## Version history (last 3 releases)

### 1.7.4 — 2026-09-29

This iOS update improves measurement stability and session history.

• Live dB reading with a real-time spectrum
• Every session saves its average, peak and minimum values along with the audio
• Review and replay any past session in History
• Generate a PDF report from a session
• Scene photos stamped with time, place and reading
• Calibration offset to match a reference meter

### 1.7.3 — 2026-05-07

1. Improved overall stability and performance.
2. Optimized the user experience.
3. Fixed known issues.

### 1.7.2 — 2026-04-30

No release notes.

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All apps by 恒盛 程: https://appshunter.io/developer/1533201832

## Related topics

[decibel checking](https://appshunter.io/ios/topics/decibel-checking)

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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 2026-10-02.*