If I upgrade my IPhone 5c to a Iphone 6s will i lose all my tapped/saved messages on Snapchat?

If I use iCloud backup would that work? I would screenshot, but I don't want to be creepy about it. I sent this girl I liked a message how I felt about her and she saved it so did I. I don't want to lose it.

Gsegfsd

  • Will I lose my messages if I upgrade my iPhone? I have the iPhone 5 now and will be upgrading to the iPhone 5S and I have messages from a person that are quite sentimental and I'm not ready to get rid of them. If I upgrade will I lose them? Is there a certain way to upgrade my phone without losing it? Not sure if all of it transfers? Thanks. Do the messages back up on iTunes?
  • Where do saved snapchat pictures save? I know you can't save other people's snapchats but you can save the ones you take on your own phone. I did that but I don't see the picture in my photo album (I have an iPhone). Where do they get saved to?
  • IPhone messages (saved) won't clear? IMy iPhone Usage under settings says that my "messages (saved)" are taking up 1.5 GB of data. I don't see any kind of Delete button for it. So how do I clear this? Please help. I've rest my phone multiple times and have ios7
  • IPhone help! Messages (saved)? My iPhone 4 runs really slowly so I went into the Usage under settings and saw that my "messages (saved)" are taking up 1.5 GB of data. I don't see any kind of Delete button for it either. So how do I clear this?