Open Source applications do not have license fees.  Consequently, the initial cost of an open source application is significantly less than the initial cost of traditional commercial applications which typically have significant license fees.  You also have the ability to share and contribute to the application for the benefit of all who use the it.  This means that application enhancements are available at no cost to you beyond the effort to load and use them.  APPX Software offers services to help you deploy and learn about new offerings as they become available.  This gives you the security of knowing that you are not on your own without service and support offerings being available to you.