Can I use any of my pics or third party wallpapers as background on iPhone?

I like using comic book characters as my wallpaper so if I can't do this it ll be a bummer since I don't wanna be stuck with only stock wallpapers

Yes just go to your gallery and there should be an option to set as home screen or lock screen

Yes

  • Why is it called third party? Who are the first and second party? So like in iPhone, you are not allowed to use a third part charger because it is not supported but I was wondering if there's a first party or a second party charger that exists?
  • Third party iPhone charger? How fast can it cause damage? I have always known using third party no name iPhone chargers can wreck your iPhone and stop it from charging properly, so I avoided. But I plugged my iPhone into my friends charger which I realized after was not an apple charger, it was only plugged in for 5-10 minutes before I removed it- could it possibly have already done some damage to my phone? I can't tell if my phone is charging slower or if I'm worrying myself over nothing!
  • Nightshift for iPhone 5C? Third party app recommendation? Ok so as you may know, iOS 9.3 came with the new nightshift feature which makes your screen more yellow allowing for better sleep. However, this feature is not included for iPhone 5C and down (5, 4S). Is there a third party app from the internet that allows the same effects? No jailbreaking required please. Link if possible. I do have a Mac if needed.
  • Moving data from old iphone to new- third party software? Anyone recommend some programs to move all my data (contacts, messages, app data i.e. Game scores, photos/videos, etc) from one iphone to another? Without using iTunes back up thing