"Decibel X" is one of very few noise meter apps on the market that has highly reliable, pre-calibrated measurements and supports dBA, dBC. It turns your iOS device into a professional sound level meter, precisely measures the sound pressure level (SPL) all around you. This extremely useful and beautiful tool will not only be a great tool for many uses but also bring you a lot of fun. Have you wondered how quiet is your room or how loud is a rock concert or sport event? "Decibel X" will help you answer all of those.


- Trusted accuracy: the app is tested and pre calibrated for all Apple devices. The precision is matching with real SPL devices
- Apple Watch support: see noise level right from your wrist
- Frequency weighting filters: A, B, C, Z
- Powerful, smart history data management:
+ Recording data can be saved into a list of history records for future access and analysis
+ Each record can be exported as hi-res PNG graph or CSV text via sharing services
+ iCloud support which synchronize all history records across your Apple devices
+ Fullscreen mode to give overview the whole history of an record
- FFT and BAR graphs to display real time FFT. Those are very useful for frequency analysis and musical tests. Real time predominant frequency is also displayed.
- WAVE graph with 2 display modes: Rolling & Buffer
- InstaDecibel to capture your dB report overlaid on photos and easily shared via popular social networks (Facebook, Instagram, Messages, etc.).
- Support both Portrait and Landscape layouts
- Beautiful, intuitive and carefully crafted UI design
- Optimized for iOS 11


- Standard time weightings (Response Time): SLOW (500 milliseconds) and FAST (200 milliseconds)
- Trimming calibration from -15 dB to 15 dB
- Standard measurement range from 30 dBA up to 130 dBA
- HISTO graph for plotted history of the recorded values
- Real time scale level chart
- Display Current, Average/Leq, and Max values with both nice and clear digital and analog layouts
- Quick reference text to help you compare with real-life examples
- "Keep Device Stay Awake" option for long duration recording
- Reset and clear current recording at any time
- Tap on Max value to reset at any time
- Pause/Resume the tool at any time


- Please do not expect a quiet room reading will be 0 dBA. The range 30-130 dBA is the standard usable range and an average quiet room will be about 30 dBA.
- Although all devices are pre-calibrated, custom calibration is suggested for serious purposes requiring higher precision and accuracy. You will need a real external device or calibrated sound meter as a reference, then adjust the trimming calibration until the reading matches with the reference.

If you like it or have suggestions, please support us by rating and giving us comments and feedback.


Versio 6.2.3

Thanks for using Decibel X! Please be sure to rate this new version and leave us a review on the App Store. Your feedback is greatly appreciated. We're listening to your feedback and working hard to improving Decibel X.

====== What's New version 6.2.3 ======
- Fixes a UI issue which does not completely show the bottom of history logs
- Components upgrade
- Several minor improvements

Arviot ja arvostelut


230 arviota

230 arviota

Helppokäyttöinen DB mittari


Erittäin mukava ja helppokäyttöinen mittari jolla saa DB arvot kaikki kerralla näkymiin

Toimii oikeasti


Näyttää oikeita, tarkkoja desibelilukemia. Mahdollisuus kalibroida mittaukset asetuksista. Mittausdata on helppo siirtää tietokoneeseen. Aikaväli (kuinka usein mittaus tehdään) voidaan säätää jopa 0,05 sekuntiin.

Näkyvissä ei ole liukuvaa keskiarvoa, ainoastaan viimeisin mittaustulos, graafi edellisistä tuloksista ja nollattavissa oleva maksimi.



Interesting, even useful. It is amazing just how much noise we inflict upon ourselves. This app offers a stern warning.


SkyPaw Co. Ltd
22.7 Mt
Edellyttää iOS-versiota 8.0 tai tätä uudempaa versiota. Yhteensopiva laitteiden iPhone, iPad ja iPod touch kanssa.
englanti, espanja, japani, kiina (perint.), kiina (yksinkertainen), saksa
Ikäraja 4+
© SkyPaw
Ostoja apissa
  1. PRO Upgrade 3,49 €
  2. A, B, C Frequency Weightings 2,29 €
  3. Remove Ads 1,09 €

Tuetut toiminnot

  • Perhejako

    Jopa kuusi perheenjäsentä voi käyttää tätä appia, kun Perhejako on käytössä.

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