Run iPhone Apps on MacOs Laptop for free
You cannot run iOS applications on anything other than iOS. And you need a device capable of running iOS (iPhone or iPad).

The reason being is that iOS applications are compiled to run on the ARM-based processor. OS X (and most desktop or notebook operating systems) run on the i386 or x64 architecture.

To run a different arch-type, you'd need an emulator. And all Xcode has is a simulator.