High blood pressure or arterial hypertension is a significant public health problem in Croatia. It is the main independent risk factor for cardiovascular disease and mortality. Every third adult person in Croatia has elevated blood pressure values. High blood pressure usually does not cause symptoms for years so it is called a "silent killer". An important influence on high blood pressure has an irregular diet, especially food that contains a high salt content. Usually it doesn’t often show symptoms for years so patients often give up or take irregularly long-term pharmacological therapy. Following the fast and extremely powerful development of digital applications in healthcare, on compatibility and persistence in using pharmacological therapy, efforts are being made to use mobile apps, which serve as support and assistance. Using a field survey of 26 questions, on a sample of 180 hypertensives in the area of Šibenik-Knin County, we wanted to investigate do they comply with reduced salt intake and proper nutrition and their interest in using digital applications to monitor the taking of drugs for hypertension, as well as application features preferences. In this paper we researched public health and marketing campaigns that promote reduced salt intake on daily basis and reduced salt use in food production in Croatia. Research results showed that 63% of respondents don’t comply with the instructions on reduced salt intake and 60% of respondents don’t comply with the guidelines for proper nutrition. In addition, 64% of respondents do not take regular pharmacological therapy and most often they forget several times in a month. The main reason is they simply forget. Results showed that 64% of respondents would use a mobile application for monitoring using of pharmacological therapy. Application features that motivate respondents for regular use are simplicity, availability (free), speed, security, usefulness and accuracy. By searching public health and marketing campaigns only a few of them are identified and it is certainly necessary to invest more resources into the public space to address this important issue properly and to prevent negative health outcomes.