If you are looking for an app that can allow you to jumpstart your animation skills, you should definitely try this app called "Animation Desk–Cartoon & GIF". It's an app that can let you create your own animation, from storyboarding and drawing your ideas to life. This app can be used by professionals up to beginners since it's very easy to use.

This application offers drawing tools to use on your project. Some of them are brushes, erasers, color palettes, and buttons for zooming in and out, and also the ability to rotate your canvas.

You can export every frame as images and export your animation into videos, PDFs, and GIFs.