"In older iPhones this app adds a voice to Navigation,"4.0 starson by Librarian404
Pros: Google gives older iPhones what is missing from Apple maps, a voice to tell you when to turn. This feature available only in iPhone 4S's and 5's gives extra life to those who can't afford update their tech every two years.
Cons: It was a long time coming
Summary:I wish Apple which is famous for backward compatibility of its products had given older iPhones this feature.
Updated on Dec 14, 2012