Waze is awesome. Also lets you know of where the PoPo is hiding. Keeps you abreast of upcoming traffic jams, routes you around them if possible, etc. Very useful on long trips. Of course, best used by the copilot, or shotgun rider.
App, shmap! I’ve been driving for 40 years now and never run into a situation where I needed anything like it. Drivers Training in ‘75...Must have been superior to today’s training because I’ve always been able to find my own way and avoid trouble on my own.