Kendama is a not very popular sport which, however, is gaining more and more fans around the world, together with a friend we noticed that there is no good application yet that would allow players to work on their skills and focus all the functionalities that players need Currently, together we are close to releasing a ready-made application, this time for both the Android and IOS platforms Main features and technologies of this app are: -Combo generator which generates a sequence of tricks depending on a given configuration -Notepad that allow us to write down our own ideas and tricks -Usage of particle system -Firebase database