Saving Dubs?

Im having a lot of trouble saving dubs to my phones camera roll! I havent used this app in a long time, and when I just started using it today the update was there, and I was utterly confused.
Can someone please help me? I looked everywhere for any kind of "save to camera roll" button, but nothing of the kind I can see.
I would really appreciate some help, please!

Lounique69 about Dubsmash - Videos & Music