The program is free, and nobody should ask for any charge of it. I consider it as a tiny contribution to the open source community, that I've learn a lot from them.

However if you are happy with the program and you want to make a donation, I would strongly prefer that is used for charity purposes.

I am supporter of the organization (Smile of Childs) in Greece Hamogelo a non-government organization to help children with problems.

When making a donation there please add in the comments my name Vasilis Vlachoudis. You can inform me as well so I can add your name (if you wish) to the supporters list.