I don't think you understand their business. The code that supports the US market also supports the UK market, it needs changes for currency/regulations, but it's not being entirely rewritten. Providing the booking service for a ride can't cost more than a few cents, and they get paid a few dollars.

And Uber has hundreds of competitors, and it's crushing all of them because of brand. I have Uber on my phone. I will never have your app. Getting app installs is hugely expensive and they have a huge lead. Even if you pay for installs, people will delete your app as soon as they realize you don't have as many drivers.

They have a huge lead in a big market. They need to not lose that.