The geocoder functions allow you to match your data with geometries on your map. This geocoding service can be used programatically to geocode datasets via the CartoDB SQL API. It is fed from _Open Data_ and it serves geometries for countries, provinces, states, cities, postal codes, IP addresses and street addresses.
The isoline functions provide a way to generate isolines in terms of distance and time, by means of the available isodistance and isochrone functions useful for Trade Areas Analysis.