difference between unicrypt & deltacrypt unicams

hi members of community
is there any one knowing the difference between the "unicam unicrypt" and the other blue one: the "unicam deltacrypt"?
is it hardware? Software? context of usage? possibilities of usage?
Both seem to work with the sparta software, so i dont understand

AW: difference between unicrypt & deltacrypt unicams

Here it is despribes: https://www.digital-eliteboard.com/showthread.php?244495-Unicam-Versionen

Easy german words, so there shouldn't be problems for a translator.