Currently, Vertigo books are not available in the DC Comics app, as the DC app has a 12+ age rating and multiple Vertigo books are 17+.

You can download the dedicated Vertigo Comics app if you have an iOS device in order to purchase and read Vertigo titles. 

Alternately, you can get Vertigo books in the Comics by comiXology app or on our website (http://comixology.com) and it will sync with the Vertigo app.