Why does my iphone 4s setup look different?

My mom just bought me and my sister new iphone 4s but we realized things were setup differently as the default, her's started with a youtube and my didn't and when you go to her app store the things you can look at are featured, top charts, categories, search, and updates.mine is the same except for categories i have to go somewhere different to see those and instead of categories being down there there's a genius feature instead. I wanna know why mine is different.

Computer keeps saying device has malfunctioned?

Every time I plug in my iPhone, I keep getting the same message. The device has malfunctioned and the computer doesn't recognize it. I've tried everything. Updating my computer, uninstalling the driver and restarting the computer but when I do that it fails to install it. I tried plugging it in to my other computer and I get the same message. Is there anything else I can do?

How to use cigarette plug with powerpoint?

I just bought an air compressor but realized it could only be power by connecting it to the car. The plug on the end of it is the same as the one for car iPhone chargers etc. I was just wondering if anyone could give me a link to a place where i can get a transformer so i can use a powerpoint for the compressor.

Why does my iPhone have a SIM if I use Sprint?

Supposedly, CDMA networks don't use SIM cards. But I just now opened my SIM card slot and there was one? What's up with that? Btw, I still have service without it, I just found it strange that it actually has a sim.

Do you think I'll get charged anything on my cell phone bill if I take it out? I keep getting a "Invalid SIM" alert but if I take it out completely, it works fine.

How to know what apps use data?

Ok so i got the Iphone 5 and have 2 gigabites. And i wanted to know if these apps use data.
-instagram?
-ifunny?
-weather?
-google translate?
-100 floors?
-shazam?
-pandora?
- a countdown?
Please answer to any of these that you know that use data. Also if you know of any other obvious app that can use data.

How to take a snapshot of snapchat?

I'm on an iPhone 4S, and I know that to take a snapshot u push the home and lock button, but whenever I do it with the snapchat app, it never works and just goes back to the message list screen instead of taking a snapshot. Is there a trick to this? Help?

Added (1). I know it's possible because my friends have done it, even on my phone, but I can't seem to get it

Got locked out of my iPhone 4

So I entered a pass code for my iPhone and I forgot it and I Can't remember it! I tried backing it up on iTunes but it won't work because I have to enter my pass code!

Iphone / Instagram app with white borders & squares?

There's a cool app where you can take a picture and there's a thick white square border around the image. Also you can make your image a circle and the border around the circle is white. Also, you can put the image on top of another image to that there's a background and a foreground image. I will post examples

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IPod Nano vs iPhone dock connector?

Can I use a dock connector from a 4th Generation iPod Nano or iPod Classic on an iPhone 3GS. I think the dock connector is the problem with the iPhone, and the iPod Nano and Classic have good connectors, but don't work. Could I just remove the connector from one and insert it in the iPhone? Or do they use slightly different connectors or something?