Embedding Animated GIFs

Hello there. I’m just writing to see if embedded animated gifs were readable by SAB? I had the idea of creating an app that taught users the alphabet for our language and had an embedded animated gif with pen strokes for each letter. Can I use a gif so that it plays automatically, or would I have to use a video clip?

Maybe another option in the program would be to include and automatic play function/automatic full screen also?