F.R.I.D.A.Y. (Female Replacement Intelligent Digital Assistant Youth)[1] is an artificial intelligence created by Tony Stark, designed to work with his Iron Man armor. She served as Stark's main user interface computer system during the final battle between the Avengers and Ultron in Sokovia and to find information about Helmut Zemo. In contrast to J.A.R.V.I.S.' voice, which was patterned after a male English accent, F.R.I.D.A.Y.'s is patterned after a female Irish one.