Why doesn`t TN have a mobile version?

I often check my TN on my phone. Google translates it to a page that is easy to view on my phone. It's not an old phone, but it isn't a smart phone. I click 'view page directly' and it shows me the site.
I can see friend requests, but I can't respond accordingly.
The same with messages.
And when on someone's profile, the only pictures that you will be able to see are their profile picture.
You'd think they'd have a pretty good mobile version by now.