Which is more worth it? And iPhone 5 or a 4s?

I'm Guna get an iPhone in the next year or two, I wanted to know which one was more worth it in terms of cost, and what's the differance. I've had a. Hard time getting a direct anwser when looking it up. I'll probly use t mobile. How much would it cost if I got unlimited texting calls and Internet all the time. Also I heard that the iPhone 4 is free right now is that so. And what are the differnt plan options.

What's the problem with my iphone?

This is the first time i have dropped it, and it wasn't even that hard. The screen is blue with verticle blue stripes and ocasional black or green stripes. I can still here siri and the touch screen works because i can type my password in, How do i fix the screen? Will it fix itself?

My iphone app store has a number on it. How do I get rid of that?

I'm new to iphone and have an iphone 5. The app store has a small 1 on it, and I don't know how to clear it. How do I get back to the first page of the app? Right now it comes up to the search page. Never had a phone with apps on it before, so please be specific.

Does iPhone 5 or Galaxy S4 work in Japan?

I'm looking to buy a new phone without a contract (I will never give up my unlimited data), but I will also be going off to college soon and am looking into studying in Japan. If I buy a phone (those two are my only real choices) and use Verizon's service for now, would I be able to get a plan with a Japanese company when I travel there? I know the S4 has an international, unlocked version, so if I buy that and use Verizon, what will become of the phone after I move?

How to get into my locked iphone?

So Yesterday, I accidently forgot and left my Iphone 4s in my bathroom (It had no passcode in it) once my brother got in he thought he would be funny to change my passcode without me finding out, I won't get to him I begged for him to tell me my password to my phone but he wouldn't budge and said it wasn't him. Before you say to plug it into my computer or sync it or something I don't have a laptop or iTunes with me. So yeah, it's locked. I tried hacking into it and nothing works.

Can I erase one iTunes library to replace it with another?

When I got my iPhone, I downloaded all my music from my old laptop onto the phone. The old laptop broke, so I plugged in my phone to this other laptop that my family keeps around the house and iTunes popped up with my moms old iTunes library. All of my music synced onto the same iTunes library but it also says its in the Cloud. I don't want my moms music on my phone, though.So, if I deleted all the music in the iTunes library as it is, would it delete all the music off of my phone?

Can i put a skin on my iPhone 5 with a screen protector already on it?

So i recently bought a red carbon fiber case for my iPhone 5 and it came with a screen protector. I put them both on but the screen protector had some air bubbles that just won't come out and since the case only covers the back and sides of the phone, you can clearly see the bubbles. I decided that i would get a skin that covers the whole phone so none of the air bubbles would show. Is it ok to put skins on top of a screen protector? Any responces would be appreciated