There were a ton of taxi related apps but none of them did what Uber did; at least in London. There were apps where you could book a taxi, telling them when and

There were a ton of taxi related apps but none of them did what Uber did; at least in London. There were apps where you could book a taxi, telling them when and where to pick you up, but if you expected anyone to show up in the next 5 minutes you were crazy. And they were twice as expensive as uber, of course.