Woebot

Woebot, an AI-driven CBT chatbot from Stanford psychologists, boasts FDA Breakthrough Device designation and clinical trials showing a 22% reduction in depression symptoms within two weeks, a hard data point that sets it apart. Its evidence-based techniques are more consistently delivered than #4 BetterHelp's therapist-led sessions, which can vary widely, and it costs $0 per month, making it 100% cheaper than the typical therapy app subscription. Woebot's clinical credentials are unmatched among free tools, though its lack of human support limits it to mild-to-moderate cases.