Yes. There is no catch. Any 3G or 4G phone can be used on any 4G monthly plan. I love it because there are no extra fees tacked on when you make your payment. Make sure you see how much 4G you actually get because after you use up your monthly allowance you get throttled down to 2G speeds. I have the $60/mo plan which had unlimited talk and text and 2GB of data. I don't even hit 1GB of data each month lol. Still no extra fees.
Its MEEEEEE!!!! I was the turkey all alooooong!!