I've built a very simple test app (showing zoomable cat pictures from thecatapi.com) in native Android (using ✏️ Compose) and iOS (using swift SwiftUI). Then I built the same thing in Flutter and KMP/ ✏️ Compose Multiplatform, so I could make release builds and compare the app sizes and startup times. I've collected all data into a blog post: https://medium.com/@jacobras/android-ios-native-vs-flutter-vs-compose-multiplatform-7ef3d5ec2a56 I made charts if you just want to take a quick peek at the results 🙂

Very interesting, thank you for the research!

In the conclusion, where does "46.4 MB" come from? I can't find 46.4 searching the article. Text further up says: "The same goes for Flutter, although it’s smaller at a total size of 17.9 MB (for iOS 12.2+, builds for earlier versions are 25.4 MB)."

@kenkyee thanks for reporting, that was from an older draft! 46.4 is actually the number for the universal IPA, but like on Android builds are smaller for actual devices » 17.9 MB. I've updated the article.