I want to create an app for iphone?

I want to create an app, when people download my app i want my logo to appear in the control centre where it can be activated, is there a way i can put my logo in the control centre, if so where can i create my app?

Can i put an Android Sim Card Into an iPhone?

Alright so I have an LG G2 and it's been going really slow and just gets annoying… I wanna get an iPhone 6 off eBay, but I'm afraid that I'm not gonna be able to just put this sim card into that phone. I have a 2year contract but it ends next year… What should I do because I really want an iphone 6

Dropped my iPhone 5c now the screen is weirdly colored?

I dropped my phone and the screen popped out a little on the right side so I pushed it back in. After I pushed it in I turned it on the screen is weirdly colored but it still completely works. The screen is faded white looking with streaks of colors sometimes but it still is fully functional.
Is there any way I can fix this myself and if not then around how much should it cost to fix?

How to practice reading treble clef?

I'm going to begin taking voice lessons in the fall. My voice teacher suggested I practice reading treble clef. I already know how to read treble clef but not as well as I used to when I took piano lessons. I'm looking for a way to practice treble clef independently without bass clef. Any tips or free iPhone apps I can use?

IPHONE HEADPHONES DON't WORK?

I HAVE SOME IPHONE HEADPHONES BUT WHENEVER I USE THEM ONLY THE LEFT SIDE WORKS AND SOMETIMES WHEN I MOVE THE WIRE OR WHEN ITS IN MY POCKET THE RIGHT WHEN Almost WORKS BUT DOESN't AND THEN SOMETIMES IT GETS STATICY BY ITSELF IS THERE AN EASY Way TO FIX THEM?

HOW TO FIX NEWER IPHONE HEADPHONES?

I have some iphone headphones but only the left side works but when i move it around and squeeze them sometimes there's almost sound coming from the right and when i play music or watch a video sometimes the headphones flick on and off is there a easy way to fix this?