I have one iPod touch and my dad has a iPhone and a iPad. I use my dad's Apple ID. My dad has many apps and if I want a game/app that normally costs money he mostly has it, so I can install it for free. Now I want to make a new account but my dad says that I can't install his apps anymore so that I have to pay the apps again. E.g: My dad has cut the rope and I want it too, can I just switch accounts and install it or do I have to buy it myself on my own account? And when I make a new ID, do I lose my apps than?