Sometimes it’s useful to have access to certain maps while away from an Internet connection, especially if you’re an iPod touch or Wi-Fi-only iPad user. If you’re using Google Maps—and with the sub-par performance of Apple’s own built-in Maps app you probably are—recently viewed information is cached automatically to some degree, but you can also actually tell Google Maps to pre-load a full detailed version of whatever map view is on your screen.
Simply focus on what you’d like to save, and then type the phrase “ok maps” in the search box. You’ll see a brief dialog indicating that Google Maps is pre-loading the map followed by a confirmation that the on-screen map area has been cached on your device. This is particularly useful for working with larger areas like whole cities, as the full detail will be stored on your device, allowing you to zoom in and see everything even while offline. Keep in mind, however, that this doesn’t work beyond a certain maximum area—about the size of an average city—so don’t expect to be able to store maps for your whole state or country.
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