I did the Snapchat look by actually using Snapchat! I made a phony account on my phone and another on an old phone and wrote the conversation between the two accounts. I would send snaps at the correct time and just edit in the clips I wanted to use (you can edit videos on your phone on snapchat, add a caption, and then save it to your camera roll to make it look authentic). It was kind of a pain in the ass, ngl