# SmarterNoise — Recording decibel meter > Premium sound level meter with video/audio recording and noise risk information. (iPhone/iPad app by Johan Rogard.) - Source: https://appshunter.io/ios/app/smarternoise/id1384299042 (this page in markdown: same URL + `.md`) - Developer: [Johan Rogard](https://appshunter.io/developer/1384299041) - Category: Utilities, Photo & Video - Price: Free with in-app purchases - Rating: 4.62/5 from 115 App Store ratings · 24 written reviews indexed - Age rating: 12+ - Requires: iOS 12.0 · 27 MB - Languages: Arabic, Dutch, English, Finnish, French, German, Hindi, Indonesian, Italian, Japanese and 8 more - Released: 2018-06-04 - Data updated: 2026-08-11 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/smarternoise/id1384299042/reviews.md ## What is SmarterNoise? SmarterNoise measures sound level, records video and audio and informs about noise SmarterNoise is a premium sound level meter app featuring several unique functions. SmarterNoise measures sound levels in video and audio modes, records video and sound, and informs you about the risks of noise exposure. In addition, SmarterNoise includes a camera, measurement location, and easy sharing, all for free. From the archive you can view the video and audio files you've saved on your phone. With SmarterNoise you take sound level and noise measuring to a new level never available before. SmarterNoise features smart icons that react to the measured sound levels based on current research results focusing on the health and the adverse effects of noise pollution. With the SmarterNoise icons you easily understand how hearing, cognitive performance, and health may be affected by different levels of noise exposure. The awareness of harmful noise is increasing globally, and is considered a versatile risk factor for well-being and health, especially in noise polluted urban environments. Features of SmarterNoise: Sound level measurement and recording in video and audio modes Sound level activated audio recording Full HD, HD or VGA video resolution Three video quality settings Zoom and camera light Restarting of measurement Archive for saved files Sharing of saved files Calibration Smart icons Location, address Time and date display 10 second sound level average (LAeq, decibel) 60 second sound level average (LAeq, decibel) Max and min decibel level About decibels and sound measurement The unit for measuring noise and sound is called a decibel. Because the decibel scale is logarithmic, a sound with an intensity that is twice that of a reference sound corresponds to an increase of about 3 decibels. The reference point of 0 decibel is set at the intensity of the least perceptible sound, the threshold of hearing. On such a scale a 10-decibel sound is 10 times the intensity of the reference sound. Highlighting this is important as already a difference of a few decibels makes a noticeable difference in how noise is perceived. Leq is an average value describing the total sound energy over a period of time. It is however common practice to measure sound levels using A-weighting, which attenuates low and high frequencies that the average person cannot hear. In this case Leq is written LAeq. LAeq is a formulated average which emphasizes higher sound peaks, and is one of the most common measurements used by professionals to measure noise. All averages in SmarterNoise are measured in LAeq. Health effects of noise are often measured in Lden. Lden measures the average sound level over a 24 hour period, with a penalty of 5 dB added for the evening hours between 19:00 and 22:00, and a penalty of 10 dB added for the nighttime hours between 22:00 and 07:00. Increased health risks have been observed during long term exposure, which highlights the need to consider the full average sound energy over a longer period, not only temporary averages or noise peaks. About noise According to the findings of the World Health Organization (WHO), noise is the second largest environmental cause of health problems, after the impact of air quality. While environmental awareness in general has increased, the burden of noise has not yet been realized by the general public. People especially in urban environments are subjected to noise daily and nightly, at home and at work. Noise pollution has increased over the years due to increased traffic and air travel, urbanization, and industrial noise exposure. Because of the complex and frequent issue of everyday noise, we developed SmarterNoise in order for people to understand noise better. ## Key features - Sound level measurement - Video and audio recording - Noise exposure risk information - Smart icons for health impact - Archive and sharing of recordings - Calibration - Location and time display ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Long-term measurement | $1.99 | one-time | | Remove ads | $2.99 | one-time | ## Recent user reviews (10 of 24) All indexed reviews: https://appshunter.io/ios/app/smarternoise/id1384299042/reviews.md ### 1/5 — Not helpful *2026-04-18, version 1.037* I was looking for an app that records loud noises at night but stops when it's silent to avoid having to listen to 8 hours and do lots of cutting and editing. This app is not set up for that. I wasted time trying to make it work by looking at all the features and even looked for tutorials on YouTube but no, there is no resource to find out how to do what's advertised on this app. Very disappointing. ### 5/5 — App excelente *2025-05-14, version 1.034* Fácil gravação, ótima captação do som. ### 2/5 — Нет звука *2025-04-13, version 1.034* При сохранении записи, на видео нет звука. вопрос к разработчикам, можно ли это как-то исправить? ### 4/5 — Logo *2024-12-27, version 1.034* Can the logo be removed? I was able to on Android, but not on iphone. ### 5/5 — Aplicativo muito bom *2024-10-14, version 1.034* Este aplicativo é muito bom. Possui inúmeras funcionalidades que auxiliam bastante na coleta de ruídos. Parabéns para os desenvolvedores. ### 5/5 — Love it but *2024-08-02, version 1.034* When I’m recording a noise and I play it back to here it I can’t no sound but when I send it to my partner on messenger can here it clears as day. So don’t know if it’s my phone or something else I have an iPhone anyone have this trouble thanks ### 5/5 — Felicitación *2024-04-24, version 1.033* Muy buena de gran utilidad ### 4/5 — Usb cam *2023-11-24, version 1.030* Can i use USB cam for readings? ### 4/5 — Funziona bene *2023-09-06, version 1.030* Funziona bene ### 5/5 — Great *2023-06-13, version 1.030* This is to replace my previous review, where I said that it didn’t look like there was any way to get the videos out of the app. There is a share button when you view the videos, I was wrong. So I take back my complaints. Great app, does what I need and does it well. ## Frequently asked questions about SmarterNoise ### What does SmarterNoise do? SmarterNoise is a premium sound level meter app that measures sound levels, records video and audio, and informs users about the risks associated with noise exposure. It helps users understand how different noise levels can affect hearing, cognitive performance, and overall health. ### What are the key features of SmarterNoise? Key features include sound level measurement and recording in both video and audio modes, sound level activated audio recording, adjustable video quality, zoom, camera light, measurement restarting, an archive for saved files, sharing capabilities, calibration, smart icons that react to sound levels, location and time display, and various average decibel measurements like LAeq. ### Is SmarterNoise free to use? The application is free to download and use, offering core functionalities like measurement, recording, and information on noise risks. However, it does include in-app purchases, suggesting that some advanced features or content may require payment. ### How does SmarterNoise help understand noise exposure? The app utilizes smart icons that visually represent the potential health and cognitive effects of measured sound levels, based on current research. This allows users to easily grasp the impact of noise pollution on their well-being, especially in urban environments. ### What kind of recordings can I make with SmarterNoise? You can record sound levels in both video and audio modes. The app supports Full HD, HD, or VGA video resolutions with three quality settings. Additionally, it offers sound level activated audio recording, ensuring that audio is captured when specific sound thresholds are met. ## Version history (last 5 releases) ### 1.039 — 2026-07-13 Fixed a crash that occurred when stopping recording of a video that didn't have an audio track. ### 1.038 — 2026-06-27 - Fixed the seek sliders not working on iOS 26. - Added Polish translation. ### 1.037 — 2025-07-28 Fixed fullscreen mode on iPhone 16 models. ### 1.036 — 2025-07-09 Added Dutch translation ### 1.035 — 2025-06-24 - Added a new display type to the live decibel graph: one-second boxes with optional minimum and maximum level display. - Improved synchronization of saved audio and the decibel graph. ## Apps similar to SmarterNoise | App | Rating | Price | Category | | --- | --- | --- | --- | | [Decibel X:dB Sound Level Meter](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923) | 4.7 (160,155) | Free | Utilities | | [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 | | [Decibel : dB Noise Level Meter](https://appshunter.io/ios/app/decibel-db-noise-level-meter/id6464403884) | 4.4 (250) | Free | Utilities | | [Decibel Meter Sound Level pro](https://appshunter.io/ios/app/decibel-meter-sound-level-pro/id6737704013) | 4.5 (28) | Free | Utilities | | [Decibel Meter detector sound](https://appshunter.io/ios/app/decibel-meter-detector-sound/id6689517462) | 4.8 (35) | Free | Utilities | | [Noise Guru: Decibel Meter](https://appshunter.io/ios/app/noise-guru-decibel-meter/id6444836813) | 4.6 (299) | Free | Utilities | ## More apps by Johan Rogard - [SmarterNoise Pro](https://appshunter.io/ios/app/smarternoise-pro/id1466745030) All apps by Johan Rogard: https://appshunter.io/developer/1384299041 --- *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 2026-08-11.*