I have recently been using Kerpoof with my 5th and 6th grade classes. I was excited to get to use it and the kids definitely love it. There is a lot of potential for kids to express themselves by creating digital storybooks and videos (movies). I was able to create a class account which then let me manage the students and have access to their creations and leave feedback, all for free with a Teacher account
The problem that we are having is that when some students try to open their saved projects the ‘Kerpoof’ symbol comes up, but never gets to their project. So then they can’t access those projects to finish them. The projects that they can’t access are ‘storybooks’. The movies seem to work fine.
Overall, I think that Kerpoof is a great site with endless possibilities and it is all free.