The Isobar Ukraine team has developed and implemented a chatbot based on the Viber platform, which is in the top messengers among the Ukrainian audience. In addition to the introductory task, the chatbot solved the problem of regular reminders about the use of Onychocide, since in order to achieve the maximum effect of treatment, it is necessary to use the drug regularly and on time. With the help of a chatbot, users can set a specific reminder time and receive notifications at that time. The functionality also provides a reminder to replenish the stock of the drug, depending on the number of affected nails. When buying a drug, a consumer received a personal digital service for treating a disease, and not just a drug.