And while both products share this same base functionality, each were designed for their own use case and specific purpose in mind. Here is a tale of these two apps:

MapQuest 4 Mobile:
The next evolution of maps and directions on the iPhone.
Overview: A FREE simple and full-featured alternative to the on-board iPhone maps application providing users easy access to maps, directions, points of interest business listings, and the ability to view MapQuest My Places information.
Designed For:
- Casual and business travelers, as well as anyone looking to view maps or easily create directions (route) to and from a specific location(s).
- Users wishing to view and utilize their Maps & Directions created and saved at MapQuest.com on their iPhone. Get your My Places account here.
- Users traveling to a new destination wanting easy access to various business listings such as coffee shops, hotels, restaurants, and more.
Current Version: 1.1.2 (NEW!) Get it here.
Resources:

MapQuest Navigator:
Simple, intuitive, voice-guided navigation for everyone.
Overview: An affordable streamlined, easy to use turn-by-turn, voice-guided navigation application that presents users with an intuitive interface for receiving their route directions via spoken street and highway names.
Designed For:
- Casual and business travelers, as well as tourists looking to optimally navigate to a new or known destination via verbal cues and spoken directions.
- Users that are looking to easily navigate to a known or unknown location-avoiding traffic incidents or traffic congestion.
- Users traveling to a new destination wanting easy access and route guidance to various business listings such as coffee shops, hotels, restaurants, and more.
Current Version: 1.0 Get it here for only $3.99/mo, $9.99/3 months, $29.99/yr
Resources:











While we've been making a lot of enhancements on MapQuest.com, our mobile services and products certainly aren't being left out! Today we're announcing our MapQuest Navigator 5.0 service is available on your AT&T mobile phone- and billable directly to your AT&T phone plan. Starting today you can get our popular voice-guided navigation service on select AT&T phones and try it out for a FREE trial period! 
The other day I was meeting a friend for dinner in Denver and we searched for City's Best 'Burgers' through Navigator's CityGuide search screen. We landed at a joint called "The Cherry Cricket". My kind of place - a bar menu with humongous burgers. When I was on my way to the airport the next day, Navigator popped up an alert that steered me around a jam on I-70 - which was key since I was running late yet again...
