Will I lose my unjailbroken apps if I upgrade to IOS7 from Jailbreak?

So I've decided to back up all my music and all my photos because I want to updated to IOS 7. The only problem I have is before I jailbroke my IOS6 Iphone 5 I got a free app (legally, no jailbreak yet) called Foxtube. I have like 300 videos there, all music videos and other stuff I enjoy watching and it would be a shame if I lost them. I'm asking this so that I know if I should take the pain of backing up every individual video from Foxtube to my camera roll, and then backing it up again before jailbreaking so at least I have a copy of them. I'm running an untethered jailbreak on IOS 6.0.1, by the way.

Can i reload starbucks mobile card with cash at the store?

I recently made a starbucks account and got the mobile card on the iphone app.instead of paying with credit card info can i load it with cash in stores? Like can i show them the scanner and the bar code numbers and reload that way?

How to download music directly to iPhones library without a computer?

Alright, so I just switched from a galaxy to an iphone, and one of the bad things is that I can't directly download music to my iphone like I could with my galaxy.

I had more than 500 songs and I don't wanna pay.99 or 1.29 for each song. Some of my songs are not even on iTunes.

I don't really want to use the computer just because I don't use mines that often.plus I'm always using my phone and it's just a lot easier

is there a way I can directly download music to my iPhones ORIGINAL music library without a computer, not with one of the apps from the AppStore that only allows you to download music to their app…

What should I ask for Christmas 2013?

I'm a 14 year old girl who is a little girly but not obsessed. A few things I have are
-a laptop
- an iPhone
- a nook
- an iPod
Please don't write ohh donate, I already do!

Where can I get a good projector?

I want a projector so I can watch movies outside and project them onto the side of the house. I don't want it to be more than $100 and it would need to project a good distance. I was thinking if it hooks up to and iphone/iPad I could buy movies off of iTunes but I would prefer it to run on dvds.
Any help finding one?

Iphone 5 problems, please anyone?

For some reason every text I receive, my brother also receives them. We both have the iphone 5s and he only gets the messages from other people that have an iphone. Please can someone help, this is really irritating.

Do I need a new router/modem?

Frequently my Wi-Fi gives me only limited access, keeping me from using my laptop, playstation, and iphone Wi-Fi. It says that I can't obtain the ip address and is clearly the router or modems problem, what needs to be replaced? I'm just tired of dealing with it.

Why do I feel like I have everything and I'm rich?

I have an iPhone 4S, xbox, 600 dollar glasses, Supra clothing and plenty of clothing, hats, Lacoste cologne, 40 inch tv, xbox games, weights, Bose and another pair of headphones, music on my iPhone, do you think I have everything and if I'm spoiled.

16year old boy Christmas gift ideas?

My parents keep asking me what I want for Christmas. I don't know what to tell them besides gift cards and clothes. I don't need any electronics (I have iPad, iPhone, headphones, etc) or video games… I like to snowboard and golf, but I don't really need anything for either of those. I'm just out of ideas. Any ideas would be greatly appreciated!