Question: Domain Mapping

Sorry to ask such a basic question, but I would rather hear what you guys say in regards to -
Q: what is the core difference between the WPMUDEV Version of Domain Mapping and the domain mapping plugin on wordpress plugin repository?

http://wordpress.org/extend/plugins/wordpress-mu-domain-mapping/
vs
https://premium.wpmudev.org/project/domain-mapping

As far as I can tell they do basically the same thing....

Thanks, just need a little clarity that's all :wink: