# SoundMeter: Decibel dB — Decibel Sound Measurement

> Decibel Sound Measurement (iPhone/iPad app by MOBILE ALCHEMY LTD.)

- Source: https://appshunter.io/ios/app/soundmeter-decibel-db/id6772828581 (this page in markdown: same URL + `.md`)
- Developer: [MOBILE ALCHEMY LTD](https://appshunter.io/developer/1577973502)
- Category: Utilities, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 10 MB
- Languages: American English
- Released: 2026-06-22
- Data updated: 2026-07-01
- User reviews in markdown: https://appshunter.io/ios/app/soundmeter-decibel-db/id6772828581/reviews.md

## What is SoundMeter?

Measure sound levels with professional-grade accuracy. SoundMeter turns your iPhone into a powerful decibel meter with real-time dB readings, spectrum analysis, and session recording.

REAL-TIME SOUND MEASUREMENT
- Instant decibel (dB) readings with A, C, and Z frequency weighting
- Fast and slow time weighting for different measurement needs
- Live min, max, average, and peak level tracking
- Color-coded safety categories based on NIOSH exposure guidelines

VISUAL SOUND ANALYSIS
- Beautiful arc gauge with smooth animated needle
- Scrolling timeline graph showing sound levels over time
- Color gradient from safe green through warning orange to danger red
- Sound level reference chart comparing to everyday sounds

SESSION RECORDING & HISTORY
- Record measurement sessions with one tap
- Review past recordings with full statistics
- Timeline graph replay of recorded sessions
- Organized history with date, duration, and average level

PRO FEATURES (One-Time Purchase)
- Spectrum Analyzer: 32-band FFT frequency visualization
- Unlimited session history (free tier: 3 recordings)
- CSV data export for professional reports
- Calibration profiles for different environments
- Threshold alerts with haptic feedback

SOUND REFERENCE GUIDE
- Compare your readings to common sounds (whisper to jet engine)
- NIOSH safe exposure time recommendations
- Understand noise risk levels for hearing protection

PERFECT FOR
- Workplace noise assessment and OSHA compliance
- Environmental noise monitoring
- Music and event sound level checking
- Hearing health awareness
- Classroom and office noise management
- Construction site safety monitoring

Built with professional audio engineering principles including IEC 61672 frequency weighting standards. While not a replacement for calibrated professional equipment, SoundMeter provides reliable relative measurements for everyday noise awareness and safety.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| SoundMeter Pro | $4.99 | one-time |
| Large Tip | $4.99 | one-time |
| Small Tip | $0.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-06-23

Version 1.0
• Real-time decibel measurement with A, C, and Z frequency weighting
• Beautiful arc gauge with animated needle and color gradient
• 32-band spectrum analyzer (Pro)
• Session recording with timeline graph and full statistics
• Sound level reference guide with NIOSH safe exposure times
• CSV data export for professional reports (Pro)
• Calibration profiles and threshold alerts (Pro)

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All apps by MOBILE ALCHEMY LTD: https://appshunter.io/developer/1577973502

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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 2026-07-01.*