Originally Posted by Jeff@TheQuadShop
I have tried Navigon, TomTom and Megellan. The Navigon (owned by Garmin) app is the best of the 3 for sure.
I have not experienced the freeze up that Max384 has, mine has worked flawlessly in the 3 years that I've been using it. Before someone even says it, you do not need a cell signal to use these GPS apps, they cache all of the maps in the phone memory, pick up your location with the phone's GPS chip and will work anywhere reguardless of cell signal.
Live Traffic is well worth the in app purchase too.
I just recently found out that you don't need a 3g signal to use gps (as long as maps are stored in phone). I had been contemplating a dedicated unit, but before I spend $100+ I'll try one of the iphone apps first.
Do the apps ever go on sale? I know there are some $40 or $50 apps that will occasionally be offered for around half price or at least a sizable discount. Anybody experienced this with one of the major gps apps?