ResApp Health Limited announced that it has signed a one year agreement with the Dartford and Gravesham National Health Service (NHS) Trust to pilot the use of ResAppDx, ResApp's CE marked acute respiratory diagnostic test that requires only a smartphone, across its four hospitals (Darent Valley, Queen Mary's, Erith & District, and Gravesham Community). It is expected that the pilot will commence in the third quarter of this calendar year.