Neurologists currently measure and count tremors of patients, by observing them in different positions. They usually observe the patients arms. They do not have a device which would allow them to measure tremors of patients, would visualize tremors and would process the measured data for easier analysis. The developed mobile application solves these problems. It uses a gyroscope and an accelerometer to measure tremors. The measured data is saved and visualised. The application allows neurologists to get accurate data about the state of their patients, compare measured data with previous measurements and so it also allows to track the progress of a patients disease. The application is simple to use and accessible to people with bad vision and bad finger control.