We have four options to move around the city and surroundings.
1- Take a taxi
With the app «Ask for Taxi»: https://play.google.com/store/apps/details?id=en.sooft.pidetaxi&hl=en
Calling to the telephone: 958 13 23 23
Another option is to take the taxi at any of the stops in the city: https://www.granadataxi.com/usuario/paradas-de-taxi
You can move around Granada easily by bus.
With this application, you can know how long it will take the bus, and information about the stops and lines: http://www.granadabus.es/
In case it does not work, this is the official page of the buses of Granada: http://www.transportesrober.com/
In Granada there is a single Metro line that runs through the city from one point to another, its time is from 7:00 a.m to 23:00 p.m, except on weekends that is from 7:00 a.m. to 2:00 a.m.
Page with the prices: http://www.granadadirect.com/transporte/metro-granada-precios/