Use APKPure App
Get Sailing Course Setter old version APK for Android
Set Sailing Course with the GPS help
Early phase app.
Helps you set the racing course.
So far very rough and can make only Windward/Leeward course.
Input your boat short name, and create new course or join others.
At the moment everyone can edit and change courses.
Lets you know where to set the marks.
Other boats can connect and get the same data. So your course setting boat can know exactly where to put the mark.
With edit you can change parameters and set new course.
Course setting phone should be on the starting boat.