Arby’s Rewards Members (free to join) can get a FREE Greek or Roast Beef Gyro with purchase through September 5th. Furthermore, current users can browse to the app’s offers section and get a voucher for a free gyro with the purchase of a full-priced menu item. Offer valid at partcipating U.S. locations through Arby’s Rewards Account in Arby’s App. Limit 1 per customer only.