Cass vs Dr. Riya by Mindtalk

Cass is a web-accessible AI mental-health assistant offering wellness chatbot support around the clock. People can use SMS or Facebook Messenger without downloading an app, creating an account, or joining a waitlist. Its knowledge engine covers 800 topics and more than three million variations. Cass offers personalised conversations, recommendations, resources, surveys, guided exercises, follow-ups, goals, referrals, and self-assessments including GAD-7 and PHQ-9. It flags crises, verifies severity, and can engage a crisis professional within 20 seconds. Users may connect on demand with 5,000 coaches across all 50 states, and the service supports seven languages. Cass can be embedded in websites, portals, Google Home, Instagram, WhatsApp, and other channels. It provides an insights dashboard with database or EHR integration. Cass states HIPAA compliance and SOC 2 certification, with encryption and daily server audits, but communications through SMS, Messenger, and WhatsApp are outside HIPAA coverage except Signal.

Dr. Riya is an AI mental health guide in the Mindtalk app. It explains WHO-5, PHQ-9 and other screening results in plain language, then suggests a guided journey, journal or human specialist based on assessments and how a user feels. It can help users organise topics for a therapist session and track mood, sleep and journal records between appointments. The wider app lists 99 clinically validated assessments, 100+ worksheets, 18 guided journeys, 26 journals and 155+ guided audio sessions. Mindtalk describes the app as self-help for general wellbeing, mild-to-moderate anxiety and low mood, sleep improvement, stress management and mental-health habits. Users can book a Mindtalk psychiatrist or clinical psychologist in the app and choose to share assessment scores and worksheet responses with a therapist. Mindtalk says account information is encrypted, not sold and private unless the user explicitly permits sharing. The free plan is free on Android, iOS and web. Dr. Riya does not diagnose, prescribe, provide therapy or offer emergency or crisis support.