(Google Maps has limited offline map support, allowing for downloads of maps that are a maximum of 50km x 50km square, which is fine for city walks but insufficient for even a modest day trip.) Rather they send relevant maps to your phone on the fly, over the air. These services aren't preloaded with map information. Many of the leading GPS and mapping app providers, including Waze, Apple Maps, and Google Maps, will only work if you're connected to a network.
But at the same time, it has made us slaves to our cellular provider's data plan. GPS technology has freed us from the tyranny of the printed, folding map.
