What is the Grubhub+ offer for Amazon Prime members? Amazon Prime members can get all the benefits of a Grubhub+ membership for free, without converting into a paid Grubhub+ membership. Your free access to Grubhub+ includes unlimited $0 delivery fees, reduced service fees, and exclusive offers on orders placed from Grubhub+ restaurants that meet the subtotal minimum, as well as 5% Grubhub+ …