I never knew about this before. I thought there's a special program to use when you overlay a video or you can only do it using a macbook, but I found on the internet recently that you can overlay or put picture on picture or split video into two using your iPhone or ipad.
Just watch the video above on how to do it. Saves me from writing it down as well as saves you from reading long paragraphs.
Hope this helps on your upcoming videos. Cheers!
