The Yellow Pages app is proving a favourite among Australian iPhone owners.

The official Yellow Pages iPhone app was released earlier this month by Telstra subsidiary Sensis. It's gaining strong traction, and has hit the maximum popularity rating on the Australian App Store.

Yellow Pages is currently the top free app in the Lifestyle category of the store, and number two in the overall free app chart.

Features include search by name or type, with the latter using GPS location to help identify nearby businesses.

Searching by type can take advantage of an auto-complete feature, though this could be described more accurately as auto-suggestion as the listed categories don't necessarily start with the letters already typed.

For example, the suggestions for Garden include Lawn Cutting and Landscape Contractors as well as Garden Equipment and Gardeners.

Once an appropriate business has been found, the app delivers click-to-call capability, and maps and directions are available (using the Sensis Whereis service).