Radium is a very valid competition to other currencies that offer blockchain based services.
I don't understand why the marketcap is so low, probably because it's only listed on C-Cex so far. From reading the Radium SmartChain thread, their blockchain utility includes username-address linkage, id verification, asset transfer, text notes, file hashes, and file verification.
Factom has first-mover advantage, plus a lot of exposure in the media.