The newly launched Smart Meter Pro app revolutionizes the way users measure sound and vibration. While the previous version, Sound Meter Pro, will continue to receive updates, we highly recommend that new users opt for the advanced version to take full advantage of its enhanced features.
The Sound Pressure Level (SPL) meter app utilizes your smartphone's microphone to accurately measure noise levels in decibels (dB). This app provides a reliable reference point, having been calibrated against actual sound meters across various Android devices. Users can trust the app for routine noise level assessments, typically ranging from 40 to 70 dB.
It’s important to note that most smartphone microphones are optimized for human voice frequencies (300-3400Hz, 40-60dB). Consequently, the maximum sound level that can be detected is often limited by the device manufacturers. For instance, devices like the Moto G4 can measure up to 94 dB, while the Galaxy S6 and Nexus 5 have maximum thresholds of 85 dB and 82 dB, respectively. Therefore, while the app is an excellent auxiliary tool for measuring everyday noise, it may not accurately capture extremely loud sounds exceeding 100 dB.
The Vibrometer feature of the app employs your phone's sensors to measure vibrations, including seismic activity. It provides a reference based on the Modified Mercalli Intensity (MMI) scale, allowing users to gauge the intensity of vibrations accurately. If the readings appear inaccurate, users can calibrate the app to ensure that the maximum value aligns with the expected range of 10-11 on the MMI scale. However, it’s essential to remember that results should be used for reference only, as the performance and sensitivity of Android devices can vary significantly.
The Pro version of the app comes packed with features designed to enhance user experience:
Purchasing the Smart Meter Pro app requires a one-time payment, granting users lifelong access to its features. This investment ensures that you have a reliable tool for sound and vibration measurement at your fingertips.
One of the standout features of the app is its offline capability. Users can access the app without an internet connection. After installation, simply open the app 1-2 times while connected to Wi-Fi or mobile data (3G/4G) to ensure proper functionality. Once this is done, you can measure sound and vibrations anywhere, anytime, without the need for an internet connection.
For additional information and tutorials, check out our YouTube channel and visit our blog. We provide valuable insights and tips to help you maximize the use of the Smart Meter Pro app.
In conclusion, whether you are a casual user or a professional needing precise measurements, the Smart Meter Pro app is your go-to solution for sound and vibration analysis. Upgrade today and experience the difference!



















