Does anyone know an animation software for iphone?

Hi im a beginner, i decided to learn animation as a gift for my gf, because i wanted to recreate a memorable moment, and i want my animation to be different, like i want it to be hand drawn, and i my thoughts are to draw each frame on a paper, and take a picture of it (now its a long process but its worth it, just to see her reaction) but i don’t know any software or application that can allow you to compile all of the photos in to a short video