The TomTom Australia iPhone app now takes advantage of the iPhone 5's larger screen to display more of the map, more menu options and more search results.
Version 1.12 is fully tested with iOS 6, according to company officials, and can be used as the routing app to take you to a location selected in Apple's Maps app.
Sine the Google Local Search service has been discontinued, TomTom has replaced it with TomTom Places, a search facility designed to find nearby places and services such as petrol stations.
The app comes with the latest TomTom map of Australia, and the purchase price includes a lifetime map subscription.
According to the company, the optional HD Traffic service ($41.99 per year as an in-app purchase) has been improved.
TomTom Australia costs $74.99.