Anyone know which other messenger apps are affected? The article (and the other one that the article refers to) don't say anything in this regard.
As per the source, the GoI has banned a total of 14 apps and they are as follows:
Crypviser
Enigma
Safeswiss
Wickrme
Mediafire
Briar
BChat
Nandbox
Conion
IMO
Element
Second line
Zangi
Threema