[3] Ada was established in 2011 by Dr. Claire Novorol (a clinician), Professor Martin Hirsch (an expert in artificial intelligence) and Daniel Nathrath (an entrepreneur).

A doctor would input the patient's signs, symptoms, and findings, and the system would provide a ranked list of probabilistic conditions.

[6] Users enter their demographics, medical history, and interact with a chatbot that asks them about the symptoms, duration of illness, and severity of the problems they are experiencing.

[7] The Assess tool is available for a wide variety of patients, including children, pregnant people, those with mental health concerns, and the elderly.

[2][3] The company operates a quality management system certified under ISO 13485, and in the UK has passed UKCA marking assessment.

[9] In September 2020, Broadband Commission for Sustainable Development issued a report identifying Ada as one of the AI solutions that have the "potential to address existing health inequalities and provide medical expertise to clinicians, health workers, and patients alike – all with the aim of improving the quality, access, and cost of healthcare delivery.