@Demo318 what do you mean exactly?
Native Ruby isn't available on those platforms.
You'd need #JRuby (only #Android) or #RubyMotion (closed source solution) for that.
#CrystalLang also has some Android PoCs but I'm not aware of anything iOS related.
So what differences are you referring to exactly?
Or do you know of a modern wave practical solution for Ruby?
I'm not quite sure which differences are to compare here especially since I don't know anything except RubyMotion on iOS. 🤔