Ada Health

Ada Health is an AI-powered symptom assessment app that walks users through a conversational, guided questionnaire about their symptoms, history, and risk factors, then generates a personalized report ranking possible causes and suggesting an appropriate next step, such as self-care, a GP visit, or emergency care. It doesn't produce a diagnosis; it's built to help people figure out how urgently they need care and what kind, using a medical reasoning engine developed with input from physicians and scientists.

The app is aimed at everyday consumers doing a first check before seeing a doctor, but Ada's real business is licensing the same assessment technology to health systems, insurers, and telehealth providers as a triage and care-navigation layer, often white-labeled inside their own apps or patient portals. This B2B side, delivered through an API and SDK, lets healthcare organizations route patients to the right level of care and cut down on unnecessary ER visits or unclear referrals.

What differentiates Ada from most symptom checkers is the scale of its underlying clinical knowledge base, built and continually refined over years by a large team of doctors and health scientists in Berlin, plus the fact that it has been used for well over 30 million assessments worldwide. That clinical backing, along with regulatory clearances in multiple markets, is what has made it a common choice for health systems and insurers looking for a trustworthy triage tool rather than just a consumer novelty.