Daily challenge #1 (gif. low res)

BEHOLD!

This is my first work w/ animation =p

There should be the third screen with a sign-up/sign-in option, but it's almost 6 am and I'm almost dead XD.
(and maybe I forgot to use a grid properly))

btw, can someone explain me how do normal people make gifs, pls?
if I do it in photoshop they take to much space.
the video's length was only 4 seconds!
had to change its resolution to 800:600.