[fiddlerwoaroof]

I haven’t used it myself, but EQL5 is attempting to make it possible to use ECL to iOS and Android apps

[TurboHaskal]

LispWorks also has offers an iOS/Android runtime, but no CAPI unfortunately.

[mark_l_watson]

The iOS runtime product allows you to write native libraries, but not do UI directly.

CAPI supports at least Mac, Windows, and Linux.

BTW, it just took me about 40 minutes using CAPI to reproduce what took a couple of hours this morning doing the same UI in Swift and SwiftUI.

[fiddlerwoaroof]

Yeah, EQL5 can be used for UIs, if I understand correctly because it builds on ECL to compile CL to C