BuddyPress.org

I already have email invites on my site, but I want members to be able to send invites to join to their friends via text messaging and social media, similar to what a lot of mobile apps have. I assume who sent them the invite wouldn’t be trackable, but I’d still like the ability to share the site this way. Ideally, you could set a custom message and share through SMS, FB, Twitter, etc. Is there any plugin/solution to meet this need? I’ve looked around and so far I haven’t found much.
Thanks!