Map data for mobile isn't free even for Google. Google buys licenses to the data from a few map data providers, and as there was effectively a duopoly in global

Map data for mobile isn't free even for Google. Google buys licenses to the data from a few map data providers, and as there was effectively a duopoly in global map data, those licenses have very strict terms of use. To use that data for e.g. real-time navigation assistance in mobile requires a different, much more expensive licenses.