Uber did this. Whatever else you think of them, they massively uplifted an entire industry's customer experience, and pretty much globally. That's an insane achievement.

In this particular case I'm pretty sure the taxi app was completely independent. Nobody actually expected Uber around here (and in fact I've yet to see any), and everyone and their mother added app support for their services. They already had a history of adding new ways of getting a taxi, as and when technology became available. And, and taxis in general are connected to a taxi service central it's easier to come up with such a thing.