Thanks!

What are some good editing apps that are cheap or free (under $20). Unfortunately right now all I have to record for video is my phone and I hook up a Blue Yeti to it for audio. Doing it this way makes the audio and video slightly off from each other and I don’t know of any ways to sync it up since they are together. Is it fixable with a decent app? And if not, I need a good app anyway to better edit my videos. Thanks!  :)