Rosser and Eccleston conducted a comprehensive review of existing apps for pain and the conclusion was that there was little evidence to support the use of current apps. Specifically, these authors showed that most apps did not specify whether their content was validated, did not include psychological components and none had been applied in a clinical study. In light of these results, Dr. Carlos Suso Ribera and Dr. Ribera Canudas contacted the research team Labpsitec of Jaume I University, who were developing an application for pain called "Pain Monitor". Dr. Carlos Suso Ribera and Dr. Ribera Canudas of the Pain Unit collaborated with Dr. Azucena García Palacios and Dr. Diana Castilla López of the Universitat Jaume I in the final development of the application of pain, Following the guidelines of Rosser and Eccleston.