What's wrong with the IOS 9 update?

I updated my iPhone 5 today and I stayed off of it all day and I went to get on it to text my boyfriend and when I would click an app it would pull up for a few seconds and go back to the homepage. My phone keeps lagging and freezing. I was texting and some of my messages weren't showing up. Can this be fixed? Will they come out with something to fix this update? Really upset about it.

Found an iPhone 4 but can't activate?

I found an iPhone 4 at the park and I factory reset it, but the original owner has linked it with their Apple ID, meaning I can't activate the phone.

Iphone 6, ios 9: i can't enable data for apps?

Like when i enable data for a game, i exit and went into the app but it says that No available network to connect. Then when i went into setting again, the data for the app was disabled

Found an iPhone but can't activate?

I found an iPhone 4 in the park and I factory reset it, but the original owner has linked it with their Apple ID, meaning I can't activate the phone.

Found an iPhone but can't activate? - 1

I found an iPhone 4 on the street and factory reset it, but the original owner has linked it with their Apple ID, meaning I can't activate the phone. Any ideas?

Do Apple updates take up space or delete photos?

I have an iPhone 4 and I haven't updated it for a while. Right now the software is IOS7 and I want to update it because I bunch of my apps had updates that require IOS8 or later. I was wondering if Apple updates take up space and if they delete photos from the camera roll.

What's the best music app for iPhone?

I don't want to buy music from iTunes cause i don't want to pay everytime I want a new song. I had a app that let me listen to music and put my phone to sleep at the same time before but now if my phone goes into sleep mode the music just stops playing untIl I unlock it. What's another good music app that's free and that a get good music from?