It's more GNU Social with a UI that isn't clunky, so Twitter. Diaspora* is more Google+ but without some of the stuff that people need in a social network like

It's more GNU Social with a UI that isn't clunky, so Twitter. Diaspora* is more Google+ but without some of the stuff that people need in a social network like event management. True that isn't available in Mastodon either but it isn't really suited to the use cases of microblogging anyway.