It empowers people with peoples with verbal communication disorders that are at risk of social isolation and their carers – teachers and parents, to communicate. The application requires an account to be created at https://tesitool.azurewebsites.net/. See the web site for more details. TESI Tool is developed under EU Erasmus+ project number 592177-EPP-1-2017-1-BG-EPPKA3-IPI-SOC-IN.