Couch25k - This free app features an 8 week plan for people that are new to running. You alternate between walking and running as you build strength and stamina.
Golf Logix - Use this app to track scores, club usage and you handicap. It also offers GPS distances on over 30,000 golf courses.
USGA Golf Rules - Need a ruling? This app from the USGA will help you settle those course-side disputes on the rules of golf.