The goal of this single arm pilot study is to investigate the feasibility, acceptability and preliminary effectiveness of the mobile app SOBER; for reducing and preventing hazardous alcohol drinking. The main questions it aims to answer are: * Feasibility: How well participants adhere to the app's lessons? * Acceptability: Participants\' satisfaction with and perceived usefulness of the app. * Preliminary Effectiveness: The number of days participants remain abstinent. Participants will: * Use the mobile application SOBER, which delivers digital cognitive behavioral therapy, for four weeks. * Wear a smartwatch to collect biometric data throughout the study. * Visit the clinic three times: at baseline (V1), two weeks after the initial visit (V2), and four weeks after the initial visit (V3). * Be evaluated using various questionnaires about their alcohol consumption, mood, and stress levels at each visit. * Receive psychiatric consultation with a board-certified psychiatrist regarding their alcohol consumption, based on the data entered into the mobile app.
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Study completion rate
Timeframe: From enrollment to the end of treatment at 4 weeks
Adherence rate
Timeframe: From enrollment to the end of treatment at 4 weeks
Preliminary Effectiveness
Timeframe: asked at baseline (V1), two weeks (V2), and four weeks (V3).
Acceptability
Timeframe: In the end of treatment at 4 weeks