I can answer that question for you. From 1902-1911, he worked with Freud, and was indeed at that time known as a "psychoanalyst". Adler broke from Freud in 1911, and initially called his work "free psychoanalysis", but later called it "Individual Psychology". Although to a general lay public, Freud, Jung and Adler are often seen as the "Big Three" of psychoanalysis, in the strict sense, only Freud was a psychoanalyst.  Jung was an analytical psychologist and Adler an individual psychologist. Use of these alternative terms helps to clarify how both Jung and Adler broke from Freud and developed their own schools of therapy.