Rash Detector is an AI-powered tool that analyzes photos of skin rashes and provides a structured report. Users upload three photos, and the AI returns detected abnormalities, a likely condition with a confidence score, evidence-based condition information, a color-coded risk assessment, and a plain-language summary. Reports are saved to a user account accessible via web and Android. The tool also offers a detailed report option that includes a symptom questionnaire and free-text notes, an AI Skin Chat for follow-up questions grounded in report history, and an analytics dashboard for tracking skin health trends over time. The service is private and encrypted, and emphasizes that it is not a substitute for professional medical advice.