You may want to check out "Lottie" - an open source framework for easily adding animations created externally into mobile apps on iOS. Lottie is sponsored by AirBnB and seems to have an active community and some high profile apps that utilize it "In the past, building complex animations for Android, iOS, and React Native apps was a difficult and lengthy process. You either had to add bulky image files for each screen size or write a thousand lines of brittle, hard-to-maintain code. Because of this, most apps weren’t using animation — despite it being a powerful tool for communicating ideas and creating compelling user experiences. One year ago, we set out to change that. Today, we’re happy to introduce our solution. Lottie is an iOS, Android, and React Native library that renders After Effects animations in real time, and allows native apps to use animations as easily as they use static assets." https://airbnb.io/lottie/#/