can't install more than two of my apps to my iphone

Hi, I've been coding for a little while and recently have wanted to install all of the simple little apps I've made onto my iPhone. I got a apple developer program license but still Xcode will only allow me to install a maximum on two - why is this? I was assuming on getting the license Xcode would just see this and allow me to install more than 2. Any help would be most appreciated.