# Decibel: dB Sound Meter — Audio noise Spectrum Analyzer > Accurate sound level meter with spectrum analysis and noise pollution detection. (iPhone/iPad app by Coocent Ltd..) - Source: https://appshunter.io/ios/app/decibel-db-sound-meter/id1620285258 (this page in markdown: same URL + `.md`) - Developer: [Coocent Ltd.](https://appshunter.io/developer/942889525) - Category: Utilities - Price: Free with in-app purchases - Rating: 4.00/5 from 6 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 47 MB - Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Hong Kong SAR China) - Released: 2022-04-27 - Data updated: 2026-09-03 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/decibel-db-sound-meter/id1620285258/reviews.md ## What is Decibel? dB Sound Meter is full of features sound level meter with exclusive accuracy of measurements and integrated Spectrum Analyzer. Calibrated with professional dB meter. It is a practical noise detector to help you avoid noise pollution that harms your hearing and affects your rest. dB Sound Meter is free app that provides professional-quality measurement results, calibrated using an actual Nor140 high-precision decibel meter. With dB Sound Meter, you can measure ambient noise levels, save your measurements and their locations, and share your measurements with others. Get noise data more comprehensively and more accurately: ●Minimal, average and maximal decibel ●Real-time decibel in dial and graph ●Levels of noise ●Calibrate before use for precise data ●Review measurement histories ● Noise dosimeter will help you understand how noisy it is at home and at your workplace. ● Highly accurate measurements. Customize your sound meter ●Save audio file while measuring ●Set decibel warning when the value is higher than the preset one ●Open the sound or vibrate for the warning ●Apply the black or white theme Other features of sound meter: ●Re-start measuring ●Suspend recording ●Rename, share and replay the recording ●Indicate the measuring duration, time and status Notice: 1.To get an accurate decibel of sound with this decibel meter (noise meter), please calibrate before use (because the performance of the microphone will be different for each device). 2.Adjust the decibel according to your experience or calibrate with a real sound meter device for comparison. (Because we couldn't estimate the different decibels between devices, we do not provide a specific solution.) 3.To avoid unnecessary loss, please SAVE your recording before exiting the sound meter app 4.If the recordings are not saved, you cannot replay the measurement. If you have any questions, please contact us by email. DB Chart 150-160 dB = Eardrum rupture 140 decibel = Aircraft carrier deck. 130 dB = Jet take-off (100 meters), gun blast at close range. 120 dB= Human pain threshold, loud rock concert. 110 decibel = Serious hearing damage if sustained for more than 1 hour. 100 dB = Serious hearing damage if sustained for more than 8 hours. 90 decibel = Likely hearing damage if sustained for more than 8 hours. 80 decibel = Potential but unlikely hearing damage if sustained for more than 8 hours. 70 dB = Just annoying, but probably safe. 60 dB = Typical conversational volume. 50 dB = A quiet, library conversation. 40 decibel = A whisper. 30 dB = Barely audible sound. 20 decibel = Threshold of human hearing. About In-App Subscriptions: --Subscription Period: "Sound Level Meter Premium - Monthly" (Continuous Monthly Subscription), "Sound Level Meter Premium - Yearly" (Continuous Annual Subscription), "Sound Level Meter Premium - Perpetual" --Payment Method: After confirming purchase and paying, payment will be debited from your Apple ID account. --Cancellation: To cancel renewal, please manually turn off auto-renewal in iTunes/Apple ID Settings 24 hours before the end of the current subscription period. --Renewal: Payment will be debited from your Apple iTunes account within 24 hours prior to the expiration date. Once payment is successfully debited, the subscription period will be extended for one additional period. --Privacy Policy: http://privacypolicy.oss-us-west-1.aliyuncs.com/protocol/privacy.txt --End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Real-time decibel measurement - Integrated Spectrum Analyzer - Noise pollution detection - Save and share measurements - Customizable decibel warnings - Calibration for accuracy - Measurement history review ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Sound meter premium - yearly | $9.99 | per year | | Sound meter premium - monthly | $0.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Sound meter premium- permanent | $12.99 | one-time | ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/decibel-db-sound-meter/id1620285258/reviews.md ### 1/5 — What a pain!! *2024-09-15* They are so determined to shunt you to their website that the app is not even worth the effort to use. ### 3/5 — とりあえず騒音測定アプリを作ってみた、って感じですね *2024-06-30* 日本語表示対応らしいけど、どこに？ サンプリングの間隔が大きすぎる。 現状では使えない感じです。 広告もなく嫌味は無さそうなのですが、とりあえずアプリを作ってみた感じですね。 校正もあるし悪くはないと思うので今後の進化に期待します。 ### 3/5 — Bom, mas poderia ser melhor. *2024-04-18* O aplicativo tem um design bom, agradável e menu simplificado. Ele registra os dados no histórico. Mas, não é possível salvar as medições e as gravações dos sons registrados. Não identifica exatamente os tipos de ruídos. Locais muito barulhentos (acima de 80 decibéis) são nomeados como silenciosos (susurro silencioso e folhas caindo). Se pudessem corrigir, ficaria ótimo. Obrigada. ### 3/5 — Неплохое приложение *2024-04-15* Но оно на непонятных языках. Непонятны вс эти бесполезные надаиси. Выбор языков, как у других нормальных разработчиков, отсутствует. Это не есть хорошо. ### 1/5 — 좀 바꿔주세요 *2023-06-05* 아니 저장공간 없다해서 몇게 많이 지웠는데 왜 자꾸 알림 떠요?진짜 별로네요 다른거 깔게요 ### 4/5 — Bravo ! *2023-02-12* Application simple et efficace ; une meilleure localisation des informations serait malgré tout appréciée. ## Frequently asked questions about Decibel ### What is Decibel: dB Sound Meter used for? Decibel: dB Sound Meter is used to measure ambient noise levels and analyze sound spectrums. It helps identify noise pollution that can harm hearing and affect rest, providing professional-quality measurement results. ### How accurate is Decibel: dB Sound Meter? The app is calibrated with a professional dB meter for exclusive accuracy. Users are advised to calibrate before use, as microphone performance varies between devices, to ensure precise data. ### Can I save my measurements with Decibel: dB Sound Meter? Yes, you can save your measurements along with their locations. You can also save audio files while measuring, rename, share, and replay recordings. ### Does Decibel: dB Sound Meter have ads? Yes, this app contains advertisements. Users can opt for premium subscriptions to remove ads and access additional features. ### What are the subscription options for Decibel: dB Sound Meter? Decibel: dB Sound Meter offers monthly, yearly, and perpetual premium subscriptions. These subscriptions provide an ad-free experience and potentially unlock advanced features. ### What devices is Decibel: dB Sound Meter available on? Decibel: dB Sound Meter is available for iPhone and iPod devices. It is designed for iOS users seeking sound measurement capabilities. ### How often is Decibel: dB Sound Meter updated? The app was last updated on November 18, 2025, with version 1.2.2. This indicates regular updates to improve functionality and address any issues. ### What is the age rating for Decibel: dB Sound Meter? Decibel: dB Sound Meter has an age rating of 4+. This suggests it is suitable for a wide range of users, including children, for educational or informational purposes. ## Version history (last 5 releases) ### 1.2.3 — 2026-05-09 Fix the bug ### 1.2.2 — 2025-11-18 Fix bugs ### 1.2.1 — 2025-08-30 Fix bugs ### 1.2.0 — 2025-07-21 * Fixed bugs & enhanced user experience ### 1.1.9 — 2025-06-23 Fix bugs ## Apps similar to Decibel | 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 | | [Shush - Sound & Noise meter](https://appshunter.io/ios/app/shush-sound-and-noise-meter/id1481271537) | 4.2 (323) | Free | Utilities | | [Decibel Metre (Sound Meter)](https://appshunter.io/ios/app/decibel-metre-sound-meter/id1590659820) | 4.5 (577) | Free | Utilities | | [Decibel X:dB Sound Level Meter](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923) | 4.6 (161,260) | Free | Utilities | | [NIOSH Sound Level Meter](https://appshunter.io/ios/app/niosh-sound-level-meter/id1096545820) | 4.7 (16,645) | 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 Coocent Ltd. - [Weather - Accurate Weather App](https://appshunter.io/ios/app/weather-accurate-weather-app/id1492853528) - [Weather forecast & Alerts](https://appshunter.io/ios/app/weather-forecast-and-alerts/id1507144524) - [Weather - Live Weather & Radar](https://appshunter.io/ios/app/weather-live-weather-and-radar/id1516956008) - [Filter Camera & Photo Editor](https://appshunter.io/ios/app/filter-camera-and-photo-editor/id1523408005) - [Beauty Self Camera - NB Camera](https://appshunter.io/ios/app/beauty-self-camera-nb-camera/id1528477126) - [QR code Barcode Scanner](https://appshunter.io/ios/app/qr-code-barcode-scanner/id1538542646) All apps by Coocent Ltd.: https://appshunter.io/developer/942889525 ## Related topics [decibel counting](https://appshunter.io/ios/topics/decibel-counting) · [decibel speech](https://appshunter.io/ios/topics/decibel-speech) · [decibel meter audio](https://appshunter.io/ios/topics/decibel-meter-audio) · [decibel counter](https://appshunter.io/ios/topics/decibel-counter) · [decibel bass](https://appshunter.io/ios/topics/decibel-bass) --- *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 2026-09-03.*