Many young people in the Middle East face anxiety problems, and social stigma often stops them from getting help. Doctors' usual talks sometimes miss the right diagnosis, and most treatments only target one part of anxiety (thoughts, feelings, or body reactions). This study tested a free mobile app designed to help teens aged 13-19 manage anxiety better on their own or with support.

The app uses artificial intelligence (AI) to chat with users, ask questions based on standard medical guidelines, and suggest a personalized plan. It combines four proven therapy styles:

• Cognitive Behavioral Therapy (CBT) - helps change unhelpful thoughts and behaviors
• Acceptance and Commitment Therapy (ACT) - teaches accepting feelings while focusing on what matters
• Mindfulness-Based Cognitive Therapy (MBCT) - combines mindfulness with ways to handle negative thoughts
• Mindfulness-Based Stress Reduction (MBSR) - uses mindfulness exercises to reduce stress

Users can also write in a private journal, review their past entries to track patterns, join video group sessions with other teens (after a short readiness check to ensure a good fit), and try virtual reality exercises to face fears safely. The app works in many languages, including Egyptian Arabic dialects, keeps chats private and encrypted, and only shares info with a psychiatrist for diagnosis help if needed. It also uses AI to read facial expressions and voice tone for real-time feedback on emotions.

We enrolled 587 teens (some used the app, others did not as a comparison group) and measured how well the app diagnosed anxiety and reduced symptoms.

Anxiety disorders show rising prevalence in the Middle East (estimated at 6.33% in recent data), compounded by cultural stigma that limits help-seeking. Conventional diagnostic interviews are prone to misclassification, and unimodal therapies often fail to address the full cognitive, emotional, and physiological dimensions of anxiety.

This randomized controlled trial evaluated a mobile application delivering an integrated, AI-assisted intervention for adolescents aged 13-19 years with anxiety symptoms or disorders. The app employs an unstructured diagnostic model powered by the Gemini API, synthesizing DSM-5 and SCID-RV criteria via natural language processing to inform personalized treatment pathways.

The core intervention integrates four evidence-based psychotherapeutic modalities within a single platform:

• Cognitive Behavioral Therapy (CBT) techniques for cognitive restructuring and behavioral experiments
• Acceptance and Commitment Therapy (ACT) modules emphasizing values clarification, defusion, and committed action
• Mindfulness-Based Cognitive Therapy (MBCT) for relapse prevention and metacognitive awareness
• Mindfulness-Based Stress Reduction (MBSR) practices for stress physiology regulation

Additional components include:

• Secure, encrypted journaling for thought/emotion tracking
• Historical data review to contextualize symptom patterns
• Video-based synchronous group therapy sessions, with group assignment guided by the adapted Adolescent Group Therapy Readiness Questionnaire (AGTRQ; derived from GTQ/GRQ) to optimize therapeutic fit and cohesion
• Real-time AI-driven analysis of facial expressions and vocal prosody for emotional state feedback
• Virtual Reality Exposure Therapy (VRET) modules for graduated exposure to anxiety triggers
• Full multilingual support, including colloquial Egyptian Arabic
• Privacy safeguards restrict psychiatrist access to diagnostic outputs only.

The trial used a parallel-group design with an experimental arm (app access; n=217) versus control (n=370; likely treatment-as-usual or waitlist based on standard practices).

Inclusion Criteria:

• Adolescents aged 13 to 19 years (inclusive) at the time of enrollment.
• Presence of anxiety symptoms or diagnosed anxiety disorder
• Access to a compatible smartphone

Exclusion Criteria:

• Age <13 years or >19 years
• Severe psychiatric comorbidities (psychosis or active suicidality)
• Intellectual disability or conditions preventing app use