Hey quick post.
I received an Uber Eats email at 4:00 pm about a Subway Offer.
Immediately at 4:01pm I received a email from Door dash for 50% off my next order.
Is this just a luck thing or is Doordash waiting for Uber to send out their offer before sending theirs out straight after to be higher on the inbox and maybe be a slightly better deal too.
They could be using the same email service who happen to provision the batch of emails with your address at the same time. Or the same analytics service is telling them when to email these out. Either way these rival companies are not deliberately coordinating their offers to you, though Doordash may have an idea of when Uber sends their offers and try to one up them.