Smart Phones & Playing Here

Because of monetary difficulties I have not been able to buy a new computer is it possible to play games here with just a smart phone ?

Phones are not officially supported but people are able to use them. I had a player in my game use their phone to play till they got their computer fixed.

You can only access the mobile version of the VTT if you or the creator of the game you're in has an active subscription. Even if you can access it, I would not recommend using it on a phone; if you've got a tablet, that's much better. The native app is not designed for phones, and so I believe the app store won't let you install it directly. You can probably sideload it onto a phone (I know I sideloaded it onto a Motorola RAZR MAXX HD during the native app's beta testing phase), but YYMV.