Flip it! - Flip it! is a great app that lets you create flip books. It is a very easy app to use. First you draw a picture then you click on the button to go to the next page, it shows where you're last drawing was on the last page so you know where to draw. The free version only allows you to do 2 books at a time and you have to limit your book to 10 pages whereas the full version only costs $0.99 and you have unlimited books and unlimited pages. Overall Flip it! is a great app and it is a lot of fun. I would give this app 5 out of 5 stars.
*tip- You have to be patient as it takes some time to make the actual flip book.
Here is a sample of my work
and of my sister's