[alexandrerond]

Telegram forever ahead...

[dmix]

Minus the whole end-to-end encryption thing... which is still missing in their Linux gui client.

[giancarlostoro]

There are alternate clients that support it on Linux. "Cutegram"

http://aseman.co/en/products/cutegram/

[devishard]

And from all their other clients, if the industry assessments of their so-called encrypted protocol are to be believed.