Question

I have two github questions:

1. Does all code need to be made public? (i.e., can we keep our code private on github, or do we have to share it with the world?)
2. Is it necessary to use a command-line interface? (I prefer not)

Edit: Regarding question #2, I am running Windows.

Answer 1

Of course it can be private, but it costs money in that case.

I know there is a Mac graphical interface made specifically for GitHub. I imagine that any of the graphical interfaces for Git can work with GitHub too however.