# Decibel : dB sound level meter

> Audio noise Spectrum Analyzer

Canonical page: [https://chrome-stats.com/d/id1227650795](https://chrome-stats.com/d/id1227650795)

## Overview

- **ID:** `id1227650795`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Vlad Polyanskiy
- **Category:** Utilities
- **Rating:** 4.60 / 5 (36,116 ratings)
- **Version:** 9.5.3
- **Last updated:** 2026-02-12
- **First published:** 2017-05-04
- **Size:** 56 MB
- **Data as of:** 2026-09-03
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/decibel-db-sound-level-meter/id1227650795)
- **Privacy policy:** [https://www.iubenda.com/privacy-policy/94359518](https://www.iubenda.com/privacy-policy/94359518)

## Description

Decibel is a feature-rich sound level meter that turns any device into a powerful measurement tool. It delivers real-time decibel (dB) readings, a built-in Spectrum Analyzer with FFT and spectrogram modes, and a noise dosimeter to help you analyze ambient sound with precision. The app supports external microphones, calibration, custom profiles, and exporting data in CSV or audio formats. It also adds live sound level overlays for photos and videos and can export measurements alongside location data for better context.

Sleep tracking and smart sound recognition run entirely on-device using private ML, keeping recordings private and never uploaded. You can view a detailed sleep timeline, identify disturbances, and export reports to the Health app or share results with others. This Chrome extension is designed for casual users, audio enthusiasts, and sound engineers for quick checks or deep analysis. Note that Decibel is not a medical or professional device, and subscription upgrades unlock advanced spectrum features and ongoing updates.

## Rankings

- #7,973 — Overall
- #16 — sound
- #22 — analyze
- #30 — analyzer
- #50 — x data

## Review summary

Decibel offers a powerful, feature-rich analysis suite and strong RTA capabilities, appealing to both hobbyists and professionals. However, reviews repeatedly flag subscription pressure, stability bugs, and save/export problems, with some users noting better/free alternatives. Overall, it can be highly effective when issues are managed, but monetization and reliability concerns color many users’ impressions.

### Pros

- Rich feature set even in the free version, including FFT plot, spectrogram, and dB reader, with recording and transfer.
- Excellent spectrum analyzer / RTA with highly accurate readings; many users call it among the best for iOS.
- All-in-one tool for noise measurement and analysis, useful for classroom or field studies.
- Easy to start with a low skill floor, yet it offers deeper capabilities for advanced users.
- Proven reliability across multiple devices and years of use.

### Cons

- Aggressive monetization: frequent requests to subscribe or pay for features beyond a trial.
- Bugs and stability issues: playback problems, crashes, and other reliability concerns.
- Problems saving/exporting recordings (videos) or sharing, sometimes requiring a subscription.
- Perceived poor value compared to free alternatives; some reviews say better free/cheaper apps exist.

## Similar extensions and apps

- [Decibel Meter・Sound Level dB](https://chrome-stats.com/d/id6755043064)
- [Decibel: Sound Level Meter](https://chrome-stats.com/d/id1624742896) — 5.00 / 5
- [Decibel : dB Noise Level Meter](https://chrome-stats.com/d/id6464403884) — 4.40 / 5
- [Decibel Meter : dB Sound Meter](https://chrome-stats.com/d/id6714469318) — 1.00 / 5
- [Decibel: dB Sound Meter](https://chrome-stats.com/d/id6755168199) — 3.00 / 5
- [Decibel Meter · Sound Analyzer](https://chrome-stats.com/d/id1624503658) — 4.70 / 5
- [Decibel: dB Sound Meter](https://chrome-stats.com/d/id1620285258) — 4.00 / 5
- [Decibel - dB Sound Meter](https://chrome-stats.com/d/id6757183442) — 4.30 / 5
- [Decibel dB: Sound Level Meter](https://chrome-stats.com/d/id6738576759) — 4.70 / 5
- [dB Meter & Spectrum Analyzer](https://chrome-stats.com/d/id733773616) — 4.70 / 5
- [Decibel Meter dB (Sound Meter)](https://chrome-stats.com/d/id1205186197) — 4.40 / 5
- [Decibel Meter Pro – Sound dB](https://chrome-stats.com/d/id6758466016)

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1227650795)