[hlasdjlfhalwjk]

In the past, zom was a XMPP client [0]. From what I can see on GitHub, the new version builds on Matrix [1], so there shouldn't be a separate answer for zom.

[0]: https://chatsecure.org/blog/chatsecure-conversations-zom/

[1]: https://github.com/zom/zom-android-matrix

[decrypt]

I didn't even know Zom was a thing. I thought they meant Zoom.