# DecibelLab: Sound Level Meter

> Spectrum·Dose·Hearing Guard

Canonical page: [https://chrome-stats.com/d/id6761004946](https://chrome-stats.com/d/id6761004946)

## Overview

- **ID:** `id6761004946`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** 永芳 徐
- **Category:** Utilities
- **Version:** 1.0.1
- **Last updated:** 2026-04-02
- **First published:** 2026-03-31
- **Size:** 15 MB
- **Data as of:** 2026-09-03
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/decibellab-sound-level-meter/id6761004946)
- **Privacy policy:** [https://apps.apple.com/app/id6761004946](https://apps.apple.com/app/id6761004946)

## Description

Pro sound level meter, ref. IEC 61672. Real-time dB monitoring, FFT spectrum analysis, NIOSH/OSHA noise dosimetry. Export PDF reports, protect your hearing.

DecibelLab is a professional-grade noise measurement and analysis tool that turns your iPhone into a portable sound level meter. Whether you're an audio engineer, a construction safety supervisor, or an everyday user concerned about hearing health, DecibelLab provides precise noise data.

◆ REAL-TIME DECIBEL MEASUREMENT
• 0-130 dB wide-range detection with real-time response
• dBA / dBC / dBZ three frequency weightings
• Slow / Fast / Ultra-fast response modes
• Five visualizations: Waveform, Bar Chart, Gauge, Heatmap, Radar

◆ FFT SPECTRUM ANALYSIS
• Octave / 1/3 Octave / FFT three display modes
• Real-time dominant frequency identification and musical note display
• Peak hold function

◆ NOISE DOSIMETER
• NIOSH (85dB/3dB) and OSHA (90dB/5dB) dual standards
• NC/NR spectrum-based environmental acoustic rating
• TWA time-weighted average and 8-hour dose percentage
• Real-time hearing protection risk assessment

◆ INSTADECIBEL CAMERA
• Real-time decibel data overlaid on camera feed
• Capture photos and videos with measurements burned into output
• Front/rear camera switching with auto-focus

◆ PROFESSIONAL REPORT EXPORT
• PDF detailed report (with timeline, distribution chart, configuration info)
• PNG high-resolution screenshot (social sharing)
• CSV raw data (Excel / Numbers analysis)

◆ NOISE ALERTS & PROTECTION
• Custom dB threshold alerts (vibration + flash + push notification)
• Auto-trigger recording 10 seconds before and after
• Decibel reference guide (0-140 dB noise level descriptions)

◆ MORE FEATURES
• Recording history management with audio playback
• GPS location tagging for measurements
• Dark / Light theme
• Background continuous monitoring
• 21 languages supported

Reference Standards: IEC 61672 / ANSI S1.4
Data Security: All measurement data is stored only on your device

Terms of Use: https://tootoostudio.github.io/decibellab-legal/terms-of-use.html
Privacy Policy: https://tootoostudio.github.io/decibellab-legal/privacy-policy.html

## Rankings

- #1,291,132 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6761004946)