Use your software? What have your company made? I just thougth that it was only danish system that was made with it. I know you can apply for a API, but did not

Use your software? What have your company made? I just thougth that it was only danish system that was made with it. I know you can apply for a API, but did not know to any program outside denmark yet. Yes, you are totally right, it is kind of stupid, but what system can you that a whole nation can understand, from the 18 year olds to the 80 year olds?