Jacob RasMany mobile apps nowadays are using Kotlin Multiplatform to share logic between Android and iOS. I've written a roundup of some of them and what can be learned from their approaches.
There's a reason these companies are choosing KMP over other cross-platform technologies, like Flutter. I've written a detailed comparison on how these two technologies compare for existing codebases.
https://medium.com/@jacobras/flutter-versus-kotlin-multiplatform-for-existing-codebases-19ff5e53ccbf
