Evaluation of the reaction of choice. This test allows you to determine the reaction time of a user's choice. It is necessary to quickly select the appropriate color or the appropriate shape (the object that is in the center) from the five offered. It is necessary to go through 4 stages, quickly and accurately respond to different visual signals. In case of an incorrect reaction, an error is counted. To obtain a more objective result, the hand with which the test is performed must be located within the central object. The 'Demo' mode allows you to get acquainted with the methodology of the test (this mode involves 2 attempts at each stage of the test)."

Model characteristics can be generated based on measurement results. To do this, navigate to the 'Data' section, click 'Choose', select the desired measurements, and click the 'Model'. On the next screen, the main characteristics of the selected measurements are displayed. If the characteristics are satisfactory, click 'Create model'. Created models are accessible in the settings under 'Models based on measurements'. To compare measurement results with a model, go to the 'Data' section, select a measurement, click 'Summery', and on the next screen, select 'Assessment'. As an example, the model characteristics of martial artists of high sports qualification 'Martial arts model' are set by default."

Also, in the settings, you can also save a backup of your measurements in JSON format anywhere (Save backup), add measurements from another device (Add backup), replace already saved measurements with new ones (Replace backup), or delete all data (Delete all data)."

This app can be utilized by athletes and teachers from specialized educational institutions for their scientific research.