Validation
After improvements, the new versions were evaluated among seven patients who were daily smokers (Fig. From a clinical point of view, the required level of involvement for solution of problems identified during the study is of importance; i.e. patients, staff and/or the company. All patients and staff scored 5 or more regarding understanding how to use the two improved prototypes, but the scores varied widely for both apps, and no substantial agreements were obtained (Tables The staff VAS scores and comments were rather similar for both apps. Overall, the challenges and problems experienced were mainly that the patients had minimal experience with using apps and did not have the necessary time to use the apps due to work reasons. The staff found the Re-app-related dashboard the most user-friendly.Both apps were time-consuming: the Ha-app for the patients who often needed help and the Re-app for the clinical staff. The staff recommended support and follow-up from an addiction specialist as complementary to the apps.