I was able to instantly edit an animation and add a “squishy” feel - by stretching the element at the keyframes, according to its motion; very satisfying.
One thing I couldn’t find is undo/redo. Is it there on mobile (or desktop for that matter)?
More feedback: I'd like for undo/redo to move me to the keyframe with the change; similar to how a cursor jumps in a text editor during undo/redo. It's a detail though and perhaps you have other features to work on.