Classkick is very similar to GoFormative. Right now, my students are kind of burnt out on GoFormative since they use it during tier time and when the take common summative assessments. I would like to use it on a daily basis, but they prefer Canvas. I see myself using this every once in a while on an assignment that I know some students will struggle with. This will allow me to check their work while they're working and help them along the way.