What's expensive for them is a bunch of things that really shouldn't be part of their business anyway. Marketing. Setting price markups. Researching new tech

What's expensive for them is a bunch of things that really shouldn't be part of their business anyway. Marketing. Setting price markups. Researching new technologies to do God knows what. The only expense that makes much sense is app development, and honestly, that sounds like it should be done by another company. Just expose an API and let restaurants and their partners handle the UI layer. There are tons of lightweight ordering platforms that could easily plug into a delivery service service.