There is an idea to create a native Lottie animation editor on iOS (in the future on macOS).
There is already an application in the alpha stage. I ask you to evaluate the usefulness of such an application in principle, and mine in particular.
Currently, the application has basic features for editing the animation parameters, without changing the structure of the elements. As a bonus, the application has access to a library of free animations from LottieFiles.
I will be glad if you join the beta testing on TestFlight or provide any other assistance.