ResApp Health Limited has signed a commercial agreement with Australian-based telehealth company Doctors on Demand. Doctors on Demand will launch ResApp's smartphone-based acute respiratory diagnostic test ResAppDx in their video telehealth services in the third quarter of this calendar year. Launched in 2015, Doctors on Demand offers both direct-to-consumer (B2C) and business-to- business (B2B) offerings for patients with a wide array of telehealth services including GP's, psychiatrists and dietitians along with direct connection to 3,623 pharmacies for prescription fulfilment. Doctors on Demand's B2B customers include Flight Centre, Allianz Partners and one of the world's largest mining companies. ResAppDx uses machine-learning technology to analyse signatures in cough sounds to diagnose respiratory disease using a smartphone's built-in microphone. It is CE Marked in Europe and TGA approved for ARTG listing in Australia.