I bought an app and downloaded a couple of free apps from my phone. When I plugged it into my computer to update, it said that there are purchased items on my iphone that arent transferred to my itunes. How do I transfer these apps from my phone to the itunes?
When you sync your iPhone it will transfer the apps on the first step. You can also force a transfer from the File menu. Click on File – Transfer Purchases from ….’s iPhone
I have a Android samsung galaxy phone, and my sisters iphone, i was wondering how i put the iphone apps, for example sims 3 onto my android phone and if its possible, thanks 
It is not possible. the apps come from two diff. apps stores and are for two diff operating systems.