https://squareup.com/help/en-us/article/5227-accept-pickup-o...
The most interesting part to me was this:
"Square’s standard fee of 2.75% will be applied to the total amount of each pickup sale for a limited time, until July 1st, 2014. After this time, the fee will be 8% per pickup order."
"If an order isn't accepted within 2 minutes, a Square Team member will call you directly, so please keep a phone nearby."
I do think Square could better explain why this service is 8% while everything else they provide is included in the 2.75% normal rate.
http://www.paymentssource.com/news/square-piles-on-new-featu...
This is just a feature where Square-powered stores can offer customers the ability to place an order for a product remotely, and then be notified of when it's ready. At which point the customer can go to the physical storefront and pick up the item. There's no addition of delivery and it's not limited to food.
EDIT: Looks like GrubHub offers take-out services as well as delivery. I didn't know this because they aren't available in my city so I haven't kept up with them.
In Square Pickup's case, this is an easy storefront for restaurants to offer their own online take-out interface. It looks like each restaurant gets their own white-labeled website, rather than just being a behind-the-scenes supplier to Square. You go to the website of the restaurant you want to order from and place the order directly with them.
(My one complaint about OrderAhead - they split any tip you give with the business, rather than just giving it all over to the business for the employees. That seems unfair to the employees.)