Prague has Liftago [0] (from English "lift" and Czech "tágo", colloquial for taxi). It basically unites licensed taxi drivers. Payments are processes by Liftago. Works very nicely.
I don't see a reason why a licensed taxi company couldn't work as Uber on the outside. (Liftago does.)
I don't see a reason why a licensed taxi company couldn't work as Uber on the outside. (Liftago does.)
[0] https://www.liftago.com/