Why not download 'what's app' , 'Nimbuzz' or Viber these are all test free app's but Viber needs wifi for calls
Great free apps from the app store and free calls and texts)
I tried that app to, whenever I tried to use type in a new email THAT I NEW WAS RIGHT BECAUSE MY FRIENDS TOLD ME TO GO TO TEXT FREE AND TYPE IN THAT EMAIL it didn't come up!!! It was so frustrating.