MyTaxi lets you book the travel time and date, select a driver you trust, the method of payment, type of taxi to get around more safely in 30 German cities and in Washington, Vienna, Zurich, Barcelona, Madrid, Warsaw and Sydney.
Select the address where you are, then the place you want to go to. There are options for "reservation" and "backup options". Select travel schedules, payment terms and more. Make sure your GPS device is on.
Handy and safe.
Not available in several countries.