Introduction: Asthma is one of the most common chronic respiratory diseases worldwide. Despite the extensive knowledge of the condition and available therapeutic options, severe asthmatic patients have poor disease control in 50% of cases.

Objective: To assess the impact of implementing a mobile application (ESTOI) in patients diagnosed with asthma on disease control, treatment adherence, and perceived quality of life. Methodology: A 52-week randomized clinical trial involving asthma patients receiving care at a highly specialized hospital in Spain. A total of 108 patients will be included and divided into two groups. The intervention group will receive more comprehensive monitoring than usual, including access to the ESTOI application. The Asthma Control Test (ACT) questionnaire will be used as the primary assessment variable. Other variables to be studied include the Inhaler Adherence Test (TAI), the number of exacerbations, peak expiratory flow, exhaled nitric oxide examination, hospital anxiety and depression scale, asthma quality of life questionnaire, forced spirometry parameters (FVC, FEV1, and reversibility), and analytical parameters (eosinophilia and IgE).