# Decibel Meter Sound Level dB — Noise Measure: SPL dBA NIOSH

> Professional sound level meter and noise dosimeter for iPhone. (iPhone/iPad app by 汇杭 钟.)

- Source: https://appshunter.io/ios/app/decibel-meter-sound-level-db/id1609178369 (this page in markdown: same URL + `.md`)
- Developer: [汇杭 钟](https://appshunter.io/developer/1481585840)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.40/5 from 24 App Store ratings · 8 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.6 · 19 MB
- Languages: British English, Canadian French, German (Germany), Italian, Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China), Latin American Spanish and 1 more
- Released: 2022-02-28
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/decibel-meter-sound-level-db/id1609178369/reviews.md

## What is Decibel Meter Sound Level dB?

Decibel Meter: Sound Level & Noise Detector

Professional Sound Meter & Noise Dosimeter for iPhone.

Turn your device into a precision sound level meter (SPL meter). Trusted by safety officers, acoustic engineers, and thousands of users, Decibel Meter delivers lab-quality noise monitoring with an elegant, intuitive interface.

Whether you are checking noise levels for OSHA workplace compliance, recording evidence for noise complaints, or analyzing audio frequencies, this is your all-in-one pocket tool.

=== KEY FEATURES ===

PROFESSIONAL NOISE DOSIMETER
• OSHA & NIOSH Standards: Accurately track daily noise exposure dose.
• Hearing Safety: Monitor TWA (Time Weighted Average) to prevent hearing loss.
• Real-Time Analysis: Instant, high-precision dB(A), dB(C), and dB(Z) measurements.

VIDEO & EVIDENCE RECORDING
• Video Overlay: Record video with real-time decibel levels embedded—perfect proof for noisy neighbors or construction sites.
• Photo Snapshots: Capture measurement screens with timestamp, location, and max dB tags.
• GPS Tagging: Automatically map your noise measurements to specific locations.

ADVANCED ANALYSIS & REPORTING
• Spectrum Analyzer (RTA): Visualize sound frequencies (FFT) to identify annoying noise sources.
• PDF Export: Generate professional reports with charts, statistics, and exposure data in seconds.
• History Log: Save unlimited session data for long-term environmental monitoring.

POWERFUL TOOLS
• Calibration: Fine-tune microphone sensitivity for professional-grade accuracy.
• Background Mode: Continue measuring and logging data even when the app is closed.
• Multiple Views: Switch between Waveform, Digital, Analog Gauge, and Spectrum views.
• Reference Chart: Compare current noise levels with real-world examples (e.g., "Subway Train," "Whisper").

Download Decibel Meter today and measure the world around you with precision!

=== Subscription options ===
The app is free to download, but to access premium features, a subscription is required. With the  subscription, you'll enjoy uninterrupted access to our premium features. Your subscription will automatically renew at the end of each term, and your credit card will be charged through your iTunes account within 24 hours before the end of the current period.

If you wish to cancel the automatic renewal of your subscription, you can do so at any time by accessing your iTunes account settings. However, please note that refunds will not be provided for any unused portion of the term. To ensure a successful cancellation, please make sure to turn off auto-renewal at least 24 hours before the end of the current period.

Terms of use: https://decibelmeter.andyrgb.com/terms
Privacy Policy: https://decibelmeter.andyrgb.com/privacy

Feedback? Contact us at: andychung.cc@gmail.com

## Key features

- Professional noise dosimeter
- OSHA & NIOSH standards compliance
- Video recording with dB overlay
- Spectrum analyzer (RTA)
- PDF report export
- Calibration for accuracy
- Background measurement mode

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Monthly | $5.99 | per month |
| Premium Yearly | $29.99 | per year |
| Premium Weekly | $4.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Premium | $49.99 | one-time |


## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/decibel-meter-sound-level-db/id1609178369/reviews.md

### 5/5 — 同类型这个最好用

*2025-12-12*

下载了好几个都试了，这个准，界面也好看

### 1/5 — 課金しないと数回しか使えません

*2025-03-11*

課金を求める画面が毎回表示され、数回断ると計測できなくなるのでアンインストールしました。

**Developer response:** フィードバックありがとうございます。ご不便をおかけして申し訳ありません。価値あるサービスを提供できるよう努めており、ご意見に感謝しています。常に改善に取り組んでおりますので、またご利用いただければ幸いです。さらにご提案があればお知らせください。

### 5/5 — 使いやすい

*2025-01-22*

日本語なので初めてでも簡単に使えてとても良いです。ずっと使っていきたいアプリです。

**Developer response:** ご親切なレビューをありがとうございます！アプリが使いやすく、ご期待に応えていると聞いて嬉しいです。皆様のサポートは私たちにとって大変重要です。引き続き素晴らしい体験を提供できるよう努めます。ご提案やサポートが必要な場合は、お気軽にご連絡ください。

### 3/5 — 一般般

*2024-12-29*

一般般，但是还需要付费

**Developer response:** 感谢您的反馈。我们努力改进，提供最佳体验。您的意见很重要，我们会在改进应用时考虑。如果您有具体建议，欢迎与我们分享。

### 1/5 — 一星都不想给

*2024-10-07*

试用还未结束一个劲弹出要交费

**Developer response:** 感谢您的反馈。很遗憾听到您的经历。我们致力于提供无缝的试用期，对给您带来的不便深表歉意。您的意见非常宝贵，我会确保与我们的团队分享以改进服务。如有其他问题，请随时联系我们。

### 1/5 — 使いたく無い

*2024-05-13*

広告ばかりでリンク先をインストールしないと動かなくなる。

**Developer response:** フィードバックありがとうございます。広告についてのご意見をお聞きし残念です。アプリの改善に努めており、皆様のご意見は非常に貴重です。コメントはチームに伝えますので、他にもご提案があればぜひお知らせください。

### 1/5 — not usable

*2023-01-23*

scale only visible a quarter on iPad with newest iPadOS 16

**Developer response:** Thank you for your feedback. I'm sorry to hear about the issue with the scale on your iPad. We're currently working on updates to improve compatibility with iPadOS 16. Your input is valuable, and I appreciate your patience as we work to enhance your experience. If you have any more details to share, please feel free to reach out.

### 5/5 — いい感じ

*2022-09-25*

とても良い感じです。
意外にも0dBと言う数字は防音室じゃないと
見られないのがびっくり‼️しました。

これからもずっとこのアプリを信用していきます。
作った方ありがとうございます😊😊！

**Developer response:** 前向きなご意見をいただき、ありがとうございます 私たちのアプリがお客様にとって良いものであることをお聞かせいただき、嬉しく思います。お客様のご意見を大切にし、今後もお客様のニーズに合ったアプリを提供できるよう努力してまいります。この度は、アプリをご利用いただき、また、お時間を割いてご意見をお寄せいただき、ありがとうございました。

## Frequently asked questions about Decibel Meter Sound Level dB

### What is Decibel Meter used for?

Decibel Meter is used to turn your iPhone into a professional sound level meter. It measures noise levels, tracks daily noise exposure according to OSHA and NIOSH standards, and can record video with real-time decibel levels embedded.

### Does Decibel Meter have ads?

Yes, Decibel Meter contains advertisements. Users can access premium features and enjoy an uninterrupted experience through a subscription.

### How accurate is Decibel Meter?

Decibel Meter offers lab-quality noise monitoring and allows for calibration to fine-tune microphone sensitivity for professional-grade accuracy. It provides real-time, high-precision dB(A), dB(C), and dB(Z) measurements.

### Can I record evidence with Decibel Meter?

Yes, you can record video with real-time decibel levels embedded, which is perfect for providing proof for noisy neighbors or construction sites. You can also capture photo snapshots with timestamp, location, and max dB tags.

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

Decibel Meter offers a Premium Monthly subscription for $4.99 and a Premium for 12 months option for $24.99, which includes a 3-day free trial. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period.

### Can Decibel Meter analyze sound frequencies?

Yes, Decibel Meter includes a Spectrum Analyzer (RTA) that visualizes sound frequencies (FFT) to help identify annoying noise sources. This feature aids in understanding the composition of the sound.

### How often is Decibel Meter updated?

The latest version of Decibel Meter is 2.4, and it was last updated on February 4, 2026. This indicates a recent update, suggesting ongoing development and support.

### What devices support Decibel Meter?

Decibel Meter is supported on iPhone and iPad devices. It is rated for ages 4 and up, making it suitable for a wide range of users.

## Version history (last 5 releases)

### 2.5 — 2026-06-02

Major Update! We’ve completely rebuilt key parts of the app to be faster, more stable, and feature-rich.

  NEW PROFESSIONAL TOOLS:
  • Noise Dosimeter: Monitor noise exposure with NIOSH/OSHA compliant
  standards for workplace safety.
  • PDF Reports: Generate and export professional reports with detailed charts
  and measurement data.
  • Video Recording: Record video with a real-time decibel level overlay for
  evidence documentation.
  • Spectrum Analyzer: Visualize frequency distribution in real-time.
  • GPS Location: Automatically tag your measurements with location data.

  PERFORMANCE BOOST:
  • Faster: App launch and real-time monitoring are now 50% faster.
  • More Stable: Reduced crash rates by over 70% for rock-solid reliability
  during long sessions.
  • Battery Efficient: Optimized energy usage provides 30% longer battery life
  for extended monitoring.

  IMPROVEMENTS:
  • New UI: Refined "Detailed" and "Compact" views for better readability.
  • Dosimeter Logic: Improved measurement accuracy and isolation from standard
  recording.
  • Enhanced audio playback in recording history

  Update now to experience the most powerful Decibel Meter yet!

### 2.4 — 2026-02-04

Major Update! We’ve completely rebuilt key parts of the app to be faster, more stable, and feature-rich.

  NEW PROFESSIONAL TOOLS:
  • Noise Dosimeter: Monitor noise exposure with NIOSH/OSHA compliant
  standards for workplace safety.
  • PDF Reports: Generate and export professional reports with detailed charts
  and measurement data.
  • Video Recording: Record video with a real-time decibel level overlay for
  evidence documentation.
  • Spectrum Analyzer: Visualize frequency distribution in real-time.
  • GPS Location: Automatically tag your measurements with location data.

  PERFORMANCE BOOST:
  • Faster: App launch and real-time monitoring are now 50% faster.
  • More Stable: Reduced crash rates by over 70% for rock-solid reliability
  during long sessions.
  • Battery Efficient: Optimized energy usage provides 30% longer battery life
  for extended monitoring.

  IMPROVEMENTS:
  • New UI: Refined "Detailed" and "Compact" views for better readability.
  • Dosimeter Logic: Improved measurement accuracy and isolation from standard
  recording.
  • Enhanced audio playback in recording history

  Update now to experience the most powerful Decibel Meter yet!

### 2.3 — 2025-10-28

We've supercharged your sound meter experience!

NEW FEATURES:
• Noise Dosimeter: NIOSH/OSHA compliant exposure monitoring for workplace safety
• PDF Report Export: Generate professional reports with charts and measurements
• Video Recording: Capture video with real-time dB overlay for evidence documentation
• Spectrum Analyzer: Visualize frequency distribution in real-time
• Location Tagging: GPS coordinates for environmental noise mapping

IMPROVEMENTS:
• Stability improvements and bug fixes
• Performance Boost: 40-60% faster app launch and smoother real-time monitoring
• Battery Optimization: Up to 30% longer battery life during extended recording sessions
• UI Refinements: Polished interface across Compact, Detailed, and Classic display modes

Update now for the most reliable and efficient sound monitoring experience!

### 2.2 — 2025-04-18

- Stability improvements and bug fixes
- New Logo

### 2.1 — 2025-01-22

- Stability improvements and bug fixes
- New Logo

## Apps similar to Decibel Meter Sound Level dB

| 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 |
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| [Decibel : dB Noise Level Meter](https://appshunter.io/ios/app/decibel-db-noise-level-meter/id6464403884) | 4.4 (250) | 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 sound level meter](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1227650795) | 4.6 (36,118) | Free | Utilities |

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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.*