Setting up an apple id for my classroom, but not through the district.

I have collected my old phones and phones of other family members to use in my classroom to do stopmotion with my students. The free stop motion app I can download is amazing and easy to use with the phones and little tripods. But I do not want my students to have access to my personal apple ID. I have seen that there are business Apple ID's, but I think that costs money. I can certainly sign up for another apple ID using my school email account, but would that be the best way to manage up to 10 devices?