Thank you for your interest in cooperation with us.
You are right about fact that people are doubtful about your project. You can give us some contacts which can clarify your tool (if it has been translated in English).
One more thing, we don`t speak Croatian...we are speaking Serbian language. In the past, it was Serbo-Croatian language but now is separated in two.
Considering circumstances it is like someone tell you that you speak Spanish.
"Da ste vi bolji narod i ja bi` bio bolji vladar!" - Knjaz Milos