# The Best Sound Meter > Measures environmental sound levels in decibels using the device microphone. (iPhone/iPad app by ZipoApps.) - Source: https://appshunter.io/ios/app/the-best-sound-meter/id901506954 (this page in markdown: same URL + `.md`) - Developer: [ZipoApps](https://appshunter.io/developer/1671444635) - Category: Utilities, Music - Price: Free with in-app purchases - Rating: 3.00/5 from 2 App Store ratings · 4 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 37 MB - Languages: American English - Released: 2014-08-01 - Data updated: 2026-08-12 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/the-best-sound-meter/id901506954/reviews.md ## What is The Best Sound Meter? Perfect Sound Meter (SPL - sound pressure level) is an app which can measure the actual sound level meter with decibels (dB). Sound meter is also known as sound level meter, decibel meter (dB meter), noise meter, sound pressure level meter (spl meter). It uses your built-in microphone to measure environmental noise decibels (dB) and show a value for reference. Perfect Sound Meter is the tool for accurately measuring sound levels, designed for both professionals and casual users. This advanced sound meter app offers a wide range of features, all accessible offline, making it an essential tool for noise detection. Whether you're monitoring environmental noise or calibrating sound levels in a professional setting, Perfect Sound Meter has you covered. Key Features: - Customizable Themes: Choose from a variety of themes to personalize the look of your sound meter. - Adjustable Refresh Rate: Modify the chart's refresh frequency to suit your needs for real-time sound measurement. - Data History & Editing: Save, view, and edit your sound measurement history for better tracking and analysis. - Screen Always-On Mode: Keep the screen active during long measurement sessions to ensure uninterrupted data recording. - Calibration: Fine-tune the app's sensitivity with the built-in calibration tool for precise sound measurements. - Multi-Language Support: Change the language to suit your preference, making the app easy to use for everyone. - Offline: Perfect Sound Meter works fully offline, allowing you to use the app anywhere, anytime. Perfect Sound Meter is your go-to decibel meter free app for professional and personal sound measurement needs. This digital noise detector is a smart tool that combines precision, ease of use, and a sleek interface. Levels of noise in decibels (dB) according to American Academy of audiology: 140 dB - gun shots, fireworks 130 dB - jackhammers, ambulance 120 dB - jet planes taking off 110 dB - concerts, car horns 100 dB - snowmobiles 90 dB - power tools 80 dB - alarm clocks 70 dB - traffic, vacuums 60 dB - normal conversation 50 dB - moderate rainfall 40 dB - quiet library 30 dB - whisper 20 dB - leaves rusting 10 dB - breathing IMPORTANT information about Perfect Sound Meter: This tool is not a professional device to measure decibels. You have to know that the built-in microphones were aligned to human voice (300-3400Hz, 40-60dB). Therefore the maximum values are limited by the hardware limitation, and very loud sound (100+ db) cannot be recognized. Remember that sound meter app is only for fun and please use it as an auxiliary tool. Download Perfect Sound Meter today and experience free sound measurement tool available offline! If you have any comments, feedback or you need help with Perfect Sound Meter, please send an e-mail to: mobile@netigen.eu. Privacy Policy: https://netigen.eu/privacy/ EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Measures sound levels in decibels (dB) - Customizable themes - Adjustable refresh rate - Data history and editing - Screen always-on mode - Calibration tool - Offline functionality ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | 1 week subscription | $2.99 | per 7 days | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Forever one-time payment | $12.99 | one-time | ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/the-best-sound-meter/id901506954/reviews.md ### 1/5 — Annoying ads *2016-06-02* Open the app and are forced to watch a full screen ad. BS. ### 1/5 — Junk *2015-07-04* Had a podcast playing loudly and even with the calibration set at the maximum the app only was registering 40 decibels. ### 1/5 — Calibration is hopeless *2014-11-12, version 1.0.2* The measurement shown is hopelessly inaccurate. With the calibration slider maxed to the right, it is showing 39dB whereas I'm measuring 59dBA with a calibrated meter. The author needs to adjust the mid-point to be much higher. Remember that sound is measured at 1m from the mic. Also, is this showing dB or dBA? ### 1/5 — Poor simulation of a scientific instrument *2014-10-01, version 1.0.2* I wouldn't expect an app designed for iPads and iPhones to be accurate. The real deal is a very complex piece of equipment. However, this app is dreadful. The sound level is given (presumably) in dBA and is nowhere near expected results even when the so called "calibration" is turned up to "20". The human voice at a distance of 6 feet usually gives a reading of about 55 to 65 dBA - this app gives about 30 after turning up the calibration. What would you expect in an app that spells "whisper" as "whishper"......... ....in the bin. ## Frequently asked questions about The Best Sound Meter ### What is the Best Sound Meter used for? The Best Sound Meter is used to measure actual sound levels in decibels (dB) using your device's microphone. It can help monitor environmental noise and serve as a reference tool for sound detection. ### Does the Best Sound Meter work offline? Yes, the Best Sound Meter works fully offline. This allows you to use the app for sound measurements anywhere, anytime, without requiring an internet connection. ### Can the Best Sound Meter be calibrated? Yes, the Best Sound Meter includes a built-in calibration tool. This feature allows you to fine-tune the app's sensitivity for more precise sound measurements. ### What are the limitations of the Best Sound Meter? The Best Sound Meter is intended as an auxiliary tool and not a professional measurement device. Its accuracy is limited by the built-in microphone's hardware, which is typically aligned for human voice frequencies and may not accurately recognize very loud sounds above 100 dB. ### Does the Best Sound Meter have ads? Yes, the Best Sound Meter contains advertisements. It is offered as a free application with ads to support its development and availability. ### What subscription options are available for the Best Sound Meter? The Best Sound Meter offers a 1-week subscription for $2.99, which includes a 3-day free trial. This subscription likely provides an enhanced experience, potentially removing ads or unlocking premium features. ### On which devices can I use the Best Sound Meter? The Best Sound Meter is supported on iPhone, iPad, and iPod devices. It is designed to function across various Apple mobile platforms. ### How often is the Best Sound Meter updated? The Best Sound Meter was last updated on August 25, 2025, with version 4.0.10. This indicates recent development and ongoing support for the application. ## Version history (last 5 releases) ### 4.0.10 — 2025-08-25 General improvement of the app. ### 4.0.9 — 2025-08-14 General improvement of the app. ### 4.0.8 — 2025-03-04 Bugs fixed, general improvement of the app ### 4.0.3 — 2024-11-04 New layout and graphics, recording data hisory, keep screen on function, themes. ### 1.0.4 — 2018-06-27 This app has been updated by Apple to display the Apple Watch app icon. App optimized; bugs fixed, new privacy policy ## Apps similar to The Best 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 (6,886) | $69.99 | Utilities | | [Shush - Sound & Noise meter](https://appshunter.io/ios/app/shush-sound-and-noise-meter/id1481271537) | 4.2 (323) | Free | Utilities | | [Decibel : dB sound level meter](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1227650795) | 4.6 (36,106) | Free | Utilities | | [Decibel X:dB Sound Level Meter](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923) | 4.7 (160,155) | Free | Utilities | | [Decibel Meter detector sound](https://appshunter.io/ios/app/decibel-meter-detector-sound/id6689517462) | 4.8 (35) | 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 ZipoApps - [Cellular Network Signal Finder](https://appshunter.io/ios/app/cellular-network-signal-finder/id447158532) - [Digital Temperature Converter](https://appshunter.io/ios/app/digital-temperature-converter/id504132215) - [Cymera・Photo Cam Beauty Editor](https://appshunter.io/ios/app/cymeraphoto-cam-beauty-editor/id553807264) - [Sand Draw - The ultra realistc drawing & doodle app](https://appshunter.io/ios/app/sand-draw-the-ultra-realistc-drawing-and-doodle-app/id589049492) - [Sand Draw: Beach Wave Art Game](https://appshunter.io/ios/app/sand-draw-beach-wave-art-game/id624591476) - [Brilliant Quotes](https://appshunter.io/ios/app/brilliant-quotes/id641984719) All apps by ZipoApps: https://appshunter.io/developer/1671444635 --- *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 2026-08-12.*