Decibel : dB sound level meter

Name: Decibel : dB sound level meter
Rating: 4.6 (36086 reviews)
Author: Vlad Polyanskiy

By: Vlad Polyanskiy

Audio noise Spectrum Analyzer

Features & Capabilities

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.

User Growth & Download Statistics

App Music & Audio Privacy & Security Analytics Data Developer Tools

By:

Vlad Polyanskiy

Rating:

4.60

(36,086) 6 new ratings

Version:

9.5.3 Last updated: 2026-02-12

Version code:

880297772

Creation date:

2017-05-04

Compatible devices:

Size:

56.04MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-06

Compare stats and ranking:

Ranking

# 7,859 ▼ 32

Other rankings

#8 in analyze keyword 10 #15 in sound keyword 39 ▼ 1#21 in analyzer keyword 20 ▲ 6#58 in level keyword 34 ▲ 27#61 in volume control keyword 49 ▲

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Vlad Polyanskiy

Apple Apps Store

https://apps.apple.com/us/app/decibel-db-sound-level-meter/id1227650795

User Reviews

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.

Recent reviews

the user experience has been exceptional!!

by Li*****, 2026-05-27

This app is a diamond in the rough for a hobbyist or enthusiast. Even the free version offers more customizability and options than most other audio visualizers, with an FFT plot, spectrogram, dB reader, etc., and it can all be recorded and transferred. It’s a great all-in-one audio analysis tool with a low skill floor and high skill ceiling.

by Ka*****, 2026-04-26

The app tries to lock you in a subscription without even letting you try it. The developer is clearly desperate to make a buck. There are apps that are free on appstore, they do the same thing. Don’t feed the machine.