【實用交通運輸app】AnchorAlertHD|最夯免費app-gigacircle

**Does Not Work Properly With IOS 7.xx**** I am working on a fix**AnchorAlertHD was designed to warn you when your anchor drags or breaks loose. It will help protect you from running aground or drifting into other boats while at anchor.Added a filter button which when activated averages 4 samples of your position to help prevent false alarms.New anchor offset feature allows you to set anchor point after you anchor.