# Decibel Pro: Sound Level Meter — Noise Frequency Analyzer

> Mobile sound level meter for noise analysis, safety monitoring, and data visualization. (iPhone/iPad app by Emre Can Altaca.)

- Source: https://appshunter.io/ios/app/decibel-pro-sound-level-meter/id6471412443 (this page in markdown: same URL + `.md`)
- Developer: [Emre Can Altaca](https://appshunter.io/developer/1589836507)
- Category: Utilities, Medical
- Price: Free
- Rating: 4.41/5 from 59 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.1 · 22 MB
- Languages: Dutch, English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Chinese and 4 more
- Released: 2023-11-13
- Data updated: 2026-07-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/decibel-pro-sound-level-meter/id6471412443/reviews.md

## What is Decibel Pro?

"Decibel Pro" turns your IOS device to professional and pre-calibrated sound level meter with optimal precision and accuracy.

Are you concerning about workplace safety, monitoring noise pollution, or just curious about the sound levels in your surroundings? "Decibel Pro" helps protect your hearing and health.

#Key Features and Functionality

1. Sound Level Meter:
   - Instant Sound Level (dB): "Decibel Pro" offers real-time measurement of sound levels, giving you an instant reading of the decibel (dB) level in your surroundings.
   - Mix and Max dB: "Decibel Pro" allows you to track the minimum and maximum sound levels over a set period, enabling you to monitor fluctuations in noise.

2. Chart Display:
   - Visualize your sound level data with intuitive charts, making it easy to analyze trends and patterns in the noise around you.

3. Dosimeter:
   - Time-Weighted Average (TWA): Decibel Pro calculates the TWA, which is a critical metric for assessing long-term exposure to noise, helping you stay within safe limits.
   - Dose and Projected Dose: Keep track of your accumulated noise exposure (dose) and projected dose for a given period, ensuring you remain within recommended safety thresholds.

4. OSHA and NIOSH Standards:
   - "Decibel Pro" is designed in accordance with OSHA (Occupational Safety and Health Administration) and NIOSH (National Institute for Occupational Safety and Health) standards, ensuring you have access to the most reliable and up-to-date guidelines for safe noise levels.

5. Calibration:
   - The app provides calibration options, allowing you to fine-tune the accuracy of your measurements for optimal results.
   - Custom calibration is suggested for serious purposes requiring higher precision and accuracy. You will need a real external device or calibrated sound meter as a reference, then adjust the trimming calibration until the reading matches with the reference.

6. Record and History:
   - Save and categorize your sound level measurements for future reference. Decibel Pro keeps a history of your readings, making it easy to track changes over time and assess trends.

7. Capture and Share:
   - Want to share your findings with others? Decibel Pro lets you capture photos along with your measurements and share them on social platforms or with colleagues, making it simple to document and discuss your observations.

8. Live Activities on Home or Lock Screen:
   - Keep an eye on sound levels even when you're not actively using the app. Decibel Pro offers the option to display live sound measurements on your device's home or lock screen, providing constant awareness of the noise in your environment.


#Other Great Features:

Time Weightings (Response Time)
   - Fast Response (F - 200ms)
   - Slow Response (S - 500ms)
   - Impulse Response (I - 50ms)

Reference Chart helps you compare with real-life examples.

We're looking forward to hearing about your experience at ealtaca@gmail.com

Privacy Policy: https://parlabs.framer.website/privacy-policy
Terms Of Use: https://parlabs.framer.website/terms-of-use

## Key features

- Real-time sound level measurement (dB)
- Minimum and maximum dB tracking
- Noise exposure (TWA, Dose) calculation
- Data visualization with charts
- OSHA and NIOSH standard adherence
- Customizable calibration options
- Measurement recording and history
- Live activity display on home/lock screen

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/decibel-pro-sound-level-meter/id6471412443/reviews.md

### 5/5 — Works really well

*2025-08-31*

Nice app

### 4/5 — It runs in background continuously

*2025-08-15*

I couldn't find the way to switch it to run when in use only.

### 5/5 — awesome app

*2025-05-17*

very good and easy to use, I have an opinion that if the line chart draw y-coordinate grids and can scale up to focus on contented part will be much great. thanks to the developers.

### 5/5 — Einfach nur geil

*2025-01-02, version 1.0*

Superspiel es ist so gut

### 5/5 — Spaß am Anmelden

*2024-12-01, version 1.0*

Perfekt,für den Alltag sehr gut und einfach zu nutzen!Danke!

### 1/5 — Not sure this is accurate

*2024-10-02*

I downloaded for similar apps and I needed to get a measurement of noise level in a room in my house. I ran all four apps several times in succession. This was the only app that deviated from the other three and it did so by over 10 dB. I’m not saying the app is right or wrong. I’m just telling you my results.  I deleted the app.

## Frequently asked questions about Decibel Pro

### What is Decibel Pro used for?

Decibel Pro transforms your iOS device into a professional sound level meter. It's used for measuring decibels, monitoring noise pollution, assessing workplace safety, and analyzing sound level trends.

### Does Decibel Pro have ads?

No, Decibel Pro does not contain advertisements.

### How accurate is Decibel Pro?

Decibel Pro is designed for optimal precision and accuracy. For serious purposes requiring higher precision, custom calibration using a real external device is suggested.

### Can I track noise exposure over time with Decibel Pro?

Yes, Decibel Pro includes a dosimeter feature that calculates Time-Weighted Average (TWA) and Dose, helping you track accumulated noise exposure and stay within safe limits.

### What safety standards does Decibel Pro follow?

Decibel Pro is designed in accordance with OSHA (Occupational Safety and Health Administration) and NIOSH (National Institute for Occupational Safety and Health) standards for safe noise levels.

### Can I save and share my sound measurements?

Yes, Decibel Pro allows you to save and categorize your sound level measurements for future reference. You can also capture photos with your measurements and share them.

### What devices does Decibel Pro support?

Decibel Pro is currently supported on iPhone devices.

### How often is Decibel Pro updated?

Decibel Pro was last updated on November 13, 2023, with version 1.0. Future updates will likely address bug fixes and new features.

## Version history (last 1 release)

### 1.0 — 2023-11-13

No release notes.

## Apps similar to Decibel Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Decibel X PRO: dBA Noise Meter](https://appshunter.io/ios/app/decibel-x-pro-dba-noise-meter/id1257651611) | 4.7 (6,850) | $69.99 | Utilities |
| [Decibel X:dB Sound Level Meter](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923) | 4.7 (155,562) | Free | Utilities |
| [Decibel : dB sound level meter](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1227650795) | 4.6 (36,014) | Free | Utilities |
| [Noise Guru: Decibel Meter](https://appshunter.io/ios/app/noise-guru-decibel-meter/id6444836813) | 4.6 (299) | Free | Utilities |
| [Decibel Meter - Sound Analyzer](https://appshunter.io/ios/app/decibel-meter-sound-analyzer/id1579747105) | 3.7 (36) | Free | Utilities |
| [Decibel Meter Sound Level pro](https://appshunter.io/ios/app/decibel-meter-sound-level-pro/id6737704013) | 4.5 (28) | Free | Utilities |

## More apps by Emre Can Altaca

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All apps by Emre Can Altaca: https://appshunter.io/developer/1589836507

## Related topics

[decibel pro](https://appshunter.io/ios/topics/decibel-pro) · [hearing decibel pro](https://appshunter.io/ios/topics/hearing-decibel-pro) · [sound level analyzer pro](https://appshunter.io/ios/topics/sound-level-analyzer-pro)

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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 2026-07-24.*