# Decibel Meter - Sound Recorder — Noise measurement & spectrum

> iPhone sound level meter with spectrum analysis and recording for noise measurement. (iPhone/iPad app by 永刚 陈.)

- Source: https://appshunter.io/ios/app/decibel-meter-sound-recorder/id6758970624 (this page in markdown: same URL + `.md`)
- Developer: [永刚 陈](https://appshunter.io/developer/1289220847)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 7 MB
- Languages: American English, French (France), German (Germany), Indonesian, Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China), European Spanish and 2 more
- Released: 2026-02-19
- Data updated: 2026-09-02
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/decibel-meter-sound-recorder/id6758970624/reviews.md

## What is Decibel Meter?

Your pocket acoustic lab.

Turn your iPhone into a high-precision sound level meter for environmental noise checks, workplace safety, and evidence recording. Get reliable readings plus real-time spectrum analysis and hearing-protection insights.

[Key Features]
• Multiple weighting modes: calibrated dB readings with A/B/C/Z and ITU-R 468.
• Real-time spectrum: high-speed FFT with a clear 20Hz–20kHz distribution.
• Noise exposure tracking: OSHA/NIOSH Dose and TWA with risk alerts.
• Recording for evidence: record while measuring, supports background recording.
• Auto Pause: automatically pauses recording below a threshold and resumes above it.
• iCloud sync: measurements and recordings sync across devices.
• Professional reports: export PDF with trends, max/min/avg, and location.
• Calibration & privacy: manual device calibration; data stored locally or in your iCloud.

[Common Scenarios]
• Neighbor noise evidence: accurately record renovation/party noise levels and recordings to support complaints and dispute resolution.
• Sleep environment monitoring: check bedroom background noise, identify sources that affect sleep, improve rest quality.
• Workplace assessment: monitor noise exposure in factories, construction sites, or offices to prevent occupational hearing loss.
• Appliance noise testing: check whether air conditioners, refrigerators, or ventilation systems exceed limits for quality checks or returns.
• Hearing protection: monitor levels at concerts, clubs, and other loud environments to avoid irreversible hearing damage.

[Privacy]
Microphone access is only for sound analysis. Audio stays local or in your private iCloud.

[Subscription Info]
• You can subscribe for unlimited access to all features of Decibel Meter.
• Subscriptions are billed monthly or annually at the rate selected depending on the subscription plan.

By using this App, you agree to our Privacy Policy and Terms of Use:
http://cpux.gmud.top/web/soundmeterx/privacy-en.html
http://cpux.gmud.top/web/soundmeterx/terms-en.html

## Key features

- High-precision sound level measurement
- Real-time spectrum analysis
- Noise exposure tracking (OSHA/NIOSH)
- Background recording for evidence
- Auto-pause recording
- iCloud sync
- Professional PDF reports

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro | $1.99 | per month |
| Pro | $14.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro | $29.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/decibel-meter-sound-recorder/id6758970624/reviews.md

### 5/5 — 实用app

*2026-02-25*

很好用的app，非常实用，功能很全

## Frequently asked questions about Decibel Meter

### What is Decibel Meter used for?

Decibel Meter turns your iPhone into a high-precision sound level meter. It's useful for environmental noise checks, workplace safety assessments, and recording audio evidence of noise levels.

### Does Decibel Meter have ads?

No, Decibel Meter does not contain advertisements. The app is free to download and use, with optional subscription plans for unlimited access to all features.

### How accurate are the decibel readings?

The app provides high-precision sound level readings and supports multiple weighting modes (A/B/C/Z and ITU-R 468) for calibrated dB measurements.

### Can I record audio with Decibel Meter?

Yes, Decibel Meter allows you to record audio while measuring sound levels. It supports background recording and features an auto-pause function that resumes recording when sound exceeds a set threshold.

### What are the subscription options for Decibel Meter?

You can subscribe to Decibel Meter for unlimited access to all features. Subscription plans are billed monthly or annually, with an option for a 7-day free trial on the annual plan.

### How does Decibel Meter handle my data privacy?

Microphone access is solely for sound analysis, and your audio data is stored locally on your device or within your private iCloud account. The app adheres to its privacy policy and terms of use.

### What devices is Decibel Meter compatible with?

Decibel Meter is compatible with iPhones and iPads, requiring iOS 4+ and is suitable for users aged 4 and up.

### How often is Decibel Meter updated?

The latest version of Decibel Meter is 1.0.2, which was last updated on February 25, 2026. This indicates regular updates to maintain functionality and introduce improvements.

## Version history (last 3 releases)

### 1.0.2 — 2026-02-25

- Added haptic feedback
- Improved UI and chart visual experience
- Fixed known issues and improved app stability

### 1.0.1 — 2026-02-23

- Added haptic feedback
- Improved UI and chart visual experience
- Fixed known issues and improved app stability

### 1.0.0 — 2026-02-19

No release notes.

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All apps by 永刚 陈: https://appshunter.io/developer/1289220847

## Related topics

[decibel x free](https://appshunter.io/ios/topics/decibel-x-free) · [sound meter x](https://appshunter.io/ios/topics/sound-meter-x)

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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 2026-09-02.*