Should I buy the iPhone 5s from target?

Hey so I have AT&T and they sell that phone for 200 and target sells it for 100 so I was wondering why is the prices different and would it still be as good if I bought the target one compared to the AT&T one?

How to transfer one iphone to another & delete icloud etc off old phone?

I have a new iphone and a new sim card, I think I know how to back up my old phone on iTunes, but to sell the phone on I need to delete icloud etc but when I put the new sim in my new phone the old one won't work, so as soon as I back up the old one, do I delete everything after and then sync the new phone? Also the computer I'm doing the transfer through is a bit slow, once I've done the sync, can I delete iTunes off the computer or will it need to remain?

How to add pictures from my computer to my IPhone 4?

I know how to connect my phone the computer but when I went to drag and drop the picture I wanted to add to my phone the pictures won't go to my phone. I have the same problem trying to add the pictures from my phone to my computer. IT's like something is turned off and I can't figure out what it is.

Iphone 5s can't restore, because lost passcode?

Hi, I'm trying to do a factory reset for a friends iPhone 5s because she doesn't know the passcode.

I put it into recovery mode and pressed on "restore" in iTunes, after it had downloaded the firmware, it came up with this error: iTunes could not connect to the iPhone "Wahis iPhone" because it is locked with a passcode. You must enter your passcode on the iPhone before it can be used with iTunes.

What can I do?

Texting app that doesn't need Wi-Fi?

I need to find a texting app that doesn't need Wi-Fi. I'm from Canada and am going on a trip to London England and want to be able to talk to my boyfriend while I'm away for a week. I don't want to pay for a messaging plan for my phone while I'm away and my boyfriend doesn't have access to Wi-Fi. We both have iPhones. Any suggestions would be greatly appreciated!