iYardage 1.0 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program is included in Games. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
iYardage is an iPhone app for golfers. It allows you to track your golf score and game stats (putts, fairway hits, gir, etc). Golfers can then upload their stats to iyardage.com and compete with friends.
iYardage is also an interactive golf yardage tracker that provides accurate distances to any point on the golf course.
You may want to check out more Mac applications, such as Soccer 2010, 4x4 Safari 2 or CARGASM HD, which might be similar to iYardage.