Vibration Meter is an app that is part of the Smart Tools collection. It uses the acceleration sensor on your Android device to measure vibrations or earthquakes and displays the results as a seismic detector or seismograph. The measured values are related to the Modified Mercalli Intensity scale (MMI), and if the readings are inaccurate, you can calibrate the app to ensure that the maximum value is around 10-11. However, it is important to note that the results should only be used as a reference since Android devices have varying performance and sensitivity. The app's main features include an alarm level, beep sound, and material design. <br/><br/>The Pro version of Vibration Meter includes additional features such as no ads, a sound meter, a statistic menu, CSV file exporting, and screen capture. If you are interested in more tools, you can download the Smart Meter Pro and Smart Tools package. <br/><br/>Overall, Vibration Meter is a useful app for measuring vibrations and earthquakes. It provides accurate readings and includes helpful features such as an alarm level and beep sound. The Pro version offers even more features and is ad-free. However, it is important to keep in mind that the results should only be used as a reference due to the varying performance and sensitivity of Android devices.