# NoiseLab: Noise Meter,SLM,dB — Noise Meter/Sound Meter/dB

> Professional noise meter and sound level analyzer for iOS devices. (iPhone/iPad app by ZKXY Technology Co., Ltd.)

- Source: https://appshunter.io/ios/app/noiselab-noise-meterslmdb/id1382478385 (this page in markdown: same URL + `.md`)
- Developer: [ZKXY Technology Co., Ltd](https://appshunter.io/developer/1382478384)
- Category: Utilities
- Price: $99.99
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 11.0 · 14 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2019-03-01
- Data updated: 2026-06-19
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/noiselab-noise-meterslmdb/id1382478385/reviews.md

## What is NoiseLab?

NoiseLab is a professional noise meter APP developed by ZKXY (member of BSWA Group). It turns your iOS device into a professional acoustical analysis meter, precisely measures the sound pressure level and the frequency characteristic around you. For acoustic engineers to comply with IEC and ASTM standards, it is essential to use external soundcard and microphones. MicW i437 microphone is recommended to use in high-precision measurement, and i437 can be purchased in Amazon and other web-shops online. 

HIGHLIGHTS:
- Support the built-in Microphone and the external microphone, the latter has 3 gains to choose.
- Measurements of any combinations of Filter Z, A, B, C and Time detector Fast, Slow and Impulse simultaneously. 3 profiles results can be shown simultaneously
- The system can be calibrated by using sound calibrators with 94 dB and 114 dB at 1000 Hz, or manual input of calibration factor.
- Measured time history of sound pressure level can be saved into the list of history report and easily export to computer and send by email. 
- Calculate and show the Current and integral Octave analysis results
- Octave result can be saved, and max 3 previous Octave results can be shown to compare. 

About BSWA Group:
Established in 1998, BSWA Group has twenty years of experiences in developing and manufacturing acoustical measurement instruments. BSWA’s products are distributed in over 40 countries through sales partners, covering the businesses of:
- Manufacturing the world class measurement microphones
- Developing acoustic measurement systems and devices
- Designing and building anechoic chambers
- Acoustical consulting for environmental and noise control projects.
More information about BSWA Group for acoustic devices and advice please visit our website:  www.bswa-tech.com.

## Key features

- Measures sound pressure level and frequency
- Supports built-in and external microphones
- Simultaneous filter (Z, A, B, C) and time detector (Fast, Slow, Impulse) measurements
- System calibration with sound calibrators or manual input
- Saves and exports sound pressure level history
- Calculates and displays Octave analysis results


## Frequently asked questions about NoiseLab

### What is NoiseLab used for?

NoiseLab is a professional noise meter and sound level analyzer that turns your iOS device into an acoustical analysis meter. It precisely measures sound pressure levels and frequency characteristics around you.

### Does NoiseLab support external microphones?

Yes, NoiseLab supports both the built-in microphone and external microphones. For external microphones, there are three gain settings available to choose from.

### Can NoiseLab be calibrated?

Yes, the system can be calibrated using sound calibrators with 94 dB and 114 dB at 1000 Hz. Alternatively, you can manually input a calibration factor.

### How does NoiseLab handle historical data?

Measured time history of sound pressure level can be saved into a list of history reports. These reports can be easily exported to a computer or sent via email.

### What kind of analysis does NoiseLab offer?

NoiseLab calculates and shows current and integral Octave analysis results. Up to three previous Octave results can be displayed simultaneously for comparison.

### What is the price of NoiseLab?

NoiseLab is a paid application, priced at $99.99.

### What devices is NoiseLab compatible with?

NoiseLab is compatible with iPhone and iPod devices.

### How often is NoiseLab updated?

The latest version of NoiseLab is 1.3.7, and it was last updated on January 30, 2026.

## Version history (last 5 releases)

### 1.3.7 — 2026-01-30

UI Bug Fixed.

### 1.3.6 — 2025-11-18

Optimize module functions.
New Module：Equivalent Sound Level (Beta)

### 1.3.5 — 2025-08-13

UI Bug Fixed.

### 1.3.4 — 2025-07-14

Noise Curve: UI optimization, modifying the line chart during testing
Loudness: UI optimization, loudness octave changed to LEQ

### 1.3.3 — 2025-06-25

Data bug fixed.

## Apps similar to NoiseLab

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Decibel X:dB Sound Level Meter](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923) | 4.7 (155,562) | Free | Utilities |
| [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 Pro: Sound Level Meter](https://appshunter.io/ios/app/decibel-pro-sound-level-meter/id6471412443) | 4.4 (59) | Free | Utilities |
| [Noise Guru: Decibel Meter](https://appshunter.io/ios/app/noise-guru-decibel-meter/id6444836813) | 4.6 (299) | Free | Utilities |
| [Decibel dB – Sound Level Meter](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1644852399) | 4.7 (651) | Free | Utilities |
| [Decibel Meter - Sound Analyzer](https://appshunter.io/ios/app/decibel-meter-sound-analyzer/id1579747105) | 3.7 (36) | Free | Utilities |

## More apps by ZKXY Technology Co., Ltd

- [AcousticLab](https://appshunter.io/ios/app/acousticlab/id1382478687)
- [NoiseLab-Lite:Noise Meter,SLM](https://appshunter.io/ios/app/noiselab-litenoise-meterslm/id1429481583)

All apps by ZKXY Technology Co., Ltd: https://appshunter.io/developer/1382478384

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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 2026-06-19.*