Stop Motion Studio by Cateater. Stop Motion Studio works really well, there is a free version and a pro version, approx $6 if you want the extra features, such as sound library, etc. I particularly like this app as it runs on really old devices, such as the iPad 1 and iPhone 5. Ideally you want to capture frames using an off camera trigger to avoid shake, earphones with volume buttons work well.Welcome, here you can buy my tried and tested stop motion kit, which is perfect for lighting and capturing your cut out animation project.
Make your own animations at home:
I have created a playlist of useful cut-out animation videos on YouTube