In a health care system burdened with large caseloads and shrinking resources, advances in information and communication technology have enormous potential to improve both efficiency and health outcomes. Especially valuable are tools for mobile telephones. Many technological initiatives, however, have been shown to have scarce ability to change clinical practice, whether because they proved impractical in actual use or because they were evaluated with inappropriate methods.1

This is not the case for the mobile telephone application MDi-Psoriasis introduced by Moreno-Ramírez et al.2 in this issue. This application is an innovative tool that can guide dermatologists making therapeutic decisions for patients with psoriasis. Its algorithms are based on current clinical practice guidelines. To test the tool's reliability, the authors used a robust approach to assessing agreement between the opinions of dermatologists expert in psoriasis and those issued by the application.

Another finding that emerged from the study was the high level of variability in the experts’ own therapeutic decisions, attributable to the numerous treatment options dermatologists have at their disposal today, particularly owing to interruptions in biologic therapy.3