YardBook for iPhone is a Virtual Golf Yardage Book viewer.
You can view the digitized yardage books at home or on-site.
The digitized yardage books have: Enhanced Green Image with Grid, Landing Zone and Lay-up Zone, Dual-Yardage Marking, Elevation with Yardage Adjustment (like a rang finder with slope).
You may use it to plan your next tournament or enhance your experience to view golf tournaments either on TV or on-site.
To help understand this modernized yardage book, pop-up Annotations are provided to explain all the labels on the book.
If youre on-site of a golf course, YardBook can provide Live-Yardage Updating and even let you to create your own yardage labels (User Marking).