I need to design a custom launch screen, and I want it to be animated. I also need to design custom buttons. I wanted to know what program would be good for that. Right now I'm using Adobe Sketch, but it doesn't do what I need it to.
See the mac app store - best is what fits your budget, skill set and specific needs. Examples are GraphicConverter and PixelMator. Free would be gimp.
If you lean towards photoshop, be sure to purchase the dev rocket plug-in...PS isn't all that iOS savvy.
Good luck.
a) launchScreen is built-in
b) 'animated' on iOS means either a slide show via uiimage, or a video...animated gifs are not supported.
My advice is to rely on the built-in launch screen and not bother hitting the user with something they might only see one time otherwise.
See https://developer.apple.com/design/human-interface-guidelines/ios/icons-and-images/launch-screen/
