I do not quite understand what you mean. There Funpug, Optware, Entware & Add-Ons. These all add-ons are independent of each other and can work together if there is no conflict in the protocols/ports.
Add-ons more kindness to the user, as established through a standard web interface and (in most cases) to set up and work through the web interface.
Additions Funpug, Optware, Entware usually require at least a minimal knowledge of Linux. Otherwise, the user will not be able to install and configure the software of interest to him.