6 of one, a half-dozen of the other...
Any "religion" is also a "cult."
"
cult /kʌlt/ Pronunciation Key - Show Spelled Pronunciation[kuhlt]
?noun
1. a particular system of religious worship, esp. with reference to its rites and ceremonies.
2. an instance of great veneration of a person, ideal, or thing, esp. as manifested by a body of admirers: the physical fitness cult.
3. the object of such devotion.
4. a group or sect bound together by veneration of the same thing, person, ideal, etc.
5. Sociology. a group having a sacred ideology and a set of rites centering around their sacred symbols."
http://dictionary.com