That's just insulting. You should teach her a lesson in business: You don't get anything without offering some consideration for it. It doesn't matter that you

That's just insulting. You should teach her a lesson in business: You don't get anything without offering some consideration for it. It doesn't matter that you did this as a learning experience. Your motivation for working doesn't transfer ownership of that work to another party. You are the sole owner of the code. If she wants that code then she has to purchase it or license it from you. I suggest you ask for cash rather than equity in her company since it's unlikely she'll be able to do anything productive without you anyway. If she doesn't want to pay then I suggest you post it to demonstrate your skills, and don't mention her or give her any credit at all. Either way, she'll learn the valuable lesson of having contracts up front.