Have you all tried kleki.com?
It is so much fun, so easy to use, and free! A majority of our students use the same type of computer provided by the district.....but some do not. I wanted to make sure we were all using the same thing so I could give them instructions that worked for EVERYONE! I'm using it with 2nd - 4th grade, and they LOVE IT!! Here is my asynchronous video for portraits.
Give it a try...and let me know what you think!