Restoring my iphone? Battery drainage?

So lately my iphone has been draining battery so fast. And i have looked up that i should restore/restart it. But if i do that will i lose my apps? I do have them on my computer but will i get them back on my phone. Also i have flappy bird (yes i still like the game) but since they discontinued the app if i restore my phone will i get it back?

i have the iphone 5. IOS 7

How to I restore my iphone 4 to factory setting?

I have no access to a computer and I forgot my passcode so it is now disabled is there anyway to factory reset it w/I access to a computer I don't know the Apple ID nor password to use the find my iphone app I got it from a friend and he can't remember it nor recover it

Retrieve deleted text from iPhone 5?

I accidentally deleted all of my text conversations. Problem is, I sent a lot of quotes and links to my own phone number. So I just lost a lot of links / important things (to me). If anyone would help, I would greatly appreciate it!

Itunes won't open downloaded movies?

Ok so i utorrented 4 or 5 mp4 filed movies from piratebay today and for some reason i can watch them in windows movie maker, but i can't play them in itunes or sync them to my iphone 5. Doers anybody know why?

I lost my iPhone can I get my pictures and stuff by?

OK so I lost my iPhone 5s and please don't say stupid comment OK I know so just don't even say it anyways do I have like 200 or 300 pictures and I NEED them back I want it anyways so can I get them by a computer I signed my apple account in my cousins computer and if I can please write them down

Is it truly possible to charge an iPhone with a watermelon?

I need to write a paragraph for my Science class about exactly how an iPhone is charged with an iPhone. My teacher explained that once you add salt to the watermelon it makes an electric current. How does the salt charge an ice water soaked watermelon electrically? Is it even possible?