Background:
The development of psychological interventions addressing smoking behaviour based on information and communication technologies (ICTs) has been growing in recent years. Specifically, mobile Apps to quit smoking have shown promising results. However, scarce research has explored real-time videoconferencing-based interventions using Apps as an adjunct to quit smoking.

Objectives:
The present study has two folds: (1) to describe the blended videoconferencing-based intervention combined with the “SinHumo” App; and (2) to examine preliminary data on acceptability and satisfaction with the intervention.

Methods:
The psychological intervention design was constructed on evidence-based cognitive-behavioural techniques to quit and scientific literature regarding smoking cessation Apps. The blended intervention was implemented in 52 seeking treatment smokers (53.8% female; Mage = 45.18; SD = 11.68). Acceptability and satisfaction with the intervention were assessed through a questionnaire filled out by participants at the end of the intervention.

Results:
The intervention consists in eight-sessions in group format through a videoconferencing system and an adjunct App designed to be available during the sessions and the one-year follow-up period. The App includes components like cigarette use self-tracking, an autogenerated list of reasons to quit smoking, a tool for setting weekly tobacco reduction goals, and motivational notifications. During follow-ups, users can access personalized components according to their smoking status (smoker, abstinent or relapsed). Satisfaction with the blended intervention was high (92.7%) and most participants reported that the App helped them quit smoking (87.8%). Qualitative comments indicated high acceptability overall.

Conclusions:
The present blended intervention based on ICTs showed good acceptance and was considered helpful for most participants. These findings have significant clinical implications, as previous studies have shown that acceptability predicts and explains outcomes, including user engagement and the effectiveness of digital health interventions. These preliminary results suggest that digital technologies could be an opportunity for reaching smokers considering quitting smoking.