I’ve done one app with Hotwire Native and it’s a pretty interesting solution. However, just like a truly complex and dynamic web UI can reach a level of polish with React that is hard with Hotwire, a truly complex and dynamic mobile UI can reach a level of polish with Swift/Kotlin that is truly hard with Hotwire. It makes the vast majority of experiences much faster to build, but certain complex experiences are hard to get polished.

However, Hotwire (web & native) can get you almost the full way there and you can just drop a React/Swift/Kotlin view in for parts of the app where you need it.