# Sound Meter - Simple Detector — Simple noise decibel meter > Simple application to measure and display sound levels in decibels. (iPhone/iPad app by GWI JU JO.) - Source: https://appshunter.io/ios/app/sound-meter-simple-detector/id1452030239 (this page in markdown: same URL + `.md`) - Developer: [GWI JU JO](https://appshunter.io/developer/1332013466) - Category: Utilities, Music - Price: Free - Rating: 3.90/5 from 35 App Store ratings · 271 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 13 MB - Languages: American English, French (France), German (Germany), Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China), Latin American Spanish, Chinese (Traditional, Taiwan) - Released: 2019-02-13 - Data updated: 2026-09-05 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/sound-meter-simple-detector/id1452030239/reviews.md ## What is Sound Meter? Simple Sound Meter App. - show decibels - calibration - graph - history Want to measure sound level? Try Sound dB Meter! This is simple sound decibel meter app (iOS) Easy to use and interesting app. Levels of Noise in decibels (dB) 20 dB - Very quiet, almost feel nothing 40 dB - Quiet, like soft whispers 50 dB - Quiet office 60 dB - Ordinary indoor conversations 80 dB - Noisy, may hurt the nerve 90 dB - Very noisy, nerve damage 100 dB - Increased noise, hearing damage 120 dB - Unbearable (Noise Sound Decibel Meter / Simple detector) (include Ad Version) [Privacy policy] https://sites.google.com/view/jo-sound-meter . ## Key features - Display decibels - Calibration - Graph view - History log - Noise level reference ## Recent user reviews (10 of 271) All indexed reviews: https://appshunter.io/ios/app/sound-meter-simple-detector/id1452030239/reviews.md ### 5/5 — 使えてます！ *2026-07-15, version 1.2.0* 近くの航空自衛隊基地の騒音を測定しました。75デシベル越え連発で納得しました。 ### 5/5 — え、 *2026-07-03, version 1.2.0* これまじですごい。どのぐらいの音がわかりやすい。 ### 4/5 — まあまあかな *2026-06-06, version 1.2.0* インストールした頃はちゃんと使えてた。だけど、最近になってから字が英語表記になって、そこから画面が動かなくて、出てる字を翻訳してみたらマイク機能をオンにしてください的なのだった。設定を見たらオンになってるけど、何故かずっとその表示のままで使えなくなった。バグなのか何なのかわからないからどうにかなればど思ってる。 長文すみません ### 5/5 — Buena app, hace lo que promete *2026-05-26, version 1.2.0* Excelente. No tiene opciones avanzadas ni para guardar o hacer reportes, pero es la única app gratuita que funciona tal cual sin querer obligarte a comprar o una suscripción sin sentido. ### 5/5 — シンプルかつ広告が邪魔じゃない！ *2026-05-17, version 1.2.0* とてもシンプルで重宝しています 広告も全画面ではなく下の方に表示されてるだけなので全然気にならなく、とても使いやすいです ### 4/5 — Interesant *2026-02-11, version 1.2.0* Solo le falta una cosa. Además de medir decibelios podría también medir hercios ### 5/5 — Отлично *2026-01-24, version 1.2.0* Без всяких платежей. Без подписок. Спасибо авторам. Отличное приложение, показывает уровень шума как надо. Рекомендую всем как дополнение к рулетке и компасу. (Которые с иос ставятся)Маст хэв. ### 5/5 — 神すぎてインヌ✋ *2026-01-14, version 1.2.0* 神すぎてインヌ🐕 ### 5/5 — 無料で使える測定器 *2026-01-11, version 1.2.0* バイクのマフラー音量測るためにインストール。他アプリは有料へ誘導するからこちらの無料で試せるのは凄くありがたい。こちらのアプリからなら有料に移行してもいいと思えた。 ### 5/5 — 만족합니드아!! *2025-12-29, version 1.2.0* 소음을 측정하기 너무조하용 ㅜㅜ 아니 친구들이랑 발구르고 소리지르고 별짓을 다해도 85 db가 안올라가네유 ㅜㅜ ## Frequently asked questions about Sound Meter ### What does the Sound Meter app do? This application functions as a simple sound decibel meter. It allows you to measure and display the current sound level in decibels (dB) in your environment. It also provides historical data and graphical representations of sound levels. ### What are the key features of this sound meter app? Key features include displaying real-time decibel readings, offering calibration options for accuracy, a graph view to visualize sound levels over time, and a history log to review past measurements. It also includes a reference guide for noise levels in decibels. ### Is this app free to use? Yes, the application is available for free. Based on the provided information, there are no in-app purchases or subscription fees required to use its core functionalities. ### What kind of devices is this app compatible with? The description specifies that this is a simple sound decibel meter app for iOS. Therefore, it is compatible with Apple devices running the iOS operating system. ### How can I use this app to understand noise levels? You can use this app to measure the decibel level of any sound around you. The app provides a reference guide showing different decibel levels and their corresponding noise descriptions, from very quiet to unbearable, helping you understand the impact of the measured noise. ## Version history (last 4 releases) ### 1.2.0 — 2023-06-27 Bug fixed and iOS version upgraded. Available iOS versions: 12 or higher ### 1.0.1 — 2019-02-16 - language added ### 1.0 — 2019-02-15 - bug fixed ### 0.9 — 2019-02-13 No release notes. ## Apps similar to Sound Meter | App | Rating | Price | Category | | --- | --- | --- | --- | | [Decibel X PRO: dBA Noise Meter](https://appshunter.io/ios/app/decibel-x-pro-dba-noise-meter/id1257651611) | 4.7 (6,897) | $69.99 | Utilities | | [Decibel X:dB Sound Level Meter](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923) | 4.6 (161,260) | Free | Utilities | | [Decibel : dB sound level meter](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1227650795) | 4.6 (36,118) | Free | Utilities | | [Decibel Metre (Sound Meter)](https://appshunter.io/ios/app/decibel-metre-sound-meter/id1590659820) | 4.5 (577) | Free | Utilities | | [Decibel Meter · Sound Analyzer](https://appshunter.io/ios/app/decibel-meter-sound-analyzer/id1624503658) | 4.7 (1,296) | Free | Utilities | | [dB Meter & Spectrum Analyzer](https://appshunter.io/ios/app/db-meter-and-spectrum-analyzer/id733773616) | 4.7 (865) | $29.99 | Utilities | ## More apps by GWI JU JO - [GPS Location - Share address](https://appshunter.io/ios/app/gps-location-share-address/id1332013467) All apps by GWI JU JO: https://appshunter.io/developer/1332013466 ## Related topics [sound meter loud](https://appshunter.io/ios/topics/sound-meter-loud) · [sound meter environment](https://appshunter.io/ios/topics/sound-meter-environment) · [sound meter x](https://appshunter.io/ios/topics/sound-meter-x) --- *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 2026-09-05.*