Google Maps is the number one navigation app, including on iPhones; Apple pre-installed Apple Maps on all iPhones ...

ETA sharing on Apple Maps and Google Maps keeps contacts updated automatically while you drive safely. Learn step-by-step instructions for iPhone and Android.

Jake Peterson is Lifehacker’s Senior Technology Editor. He has a BFA in Film & TV from NYU, where he specialized in writing. Jake has been helping people with their technology professionally since ...