Yes. When your phone is connected to wifi or you have good service, open the DICE app and go to the ‘Tickets’ section (bottom bar, second icon from left.) You’ll need to open your ticket by tapping on the image and name of the artist. The ticket will a QR code and your name.
By doing this your ticket(s) will be saved onto your handset, so if there's no signal or wifi at the venue you can still get in as normal.