I developed one Qt application in Mac using Qt creator,Its working fine on my development machine.Then I copied the project output from my build directory to a new machine w
Make sure to have read Developing Qt Applications for Mac OS X.
The binary will be in your Debug or Release folder and it will be as .app
(.app extension may be hidden )
make sure you copy that and it should work fine as the binary has all its dependencies packed together
See Qt for macOS - Deployment specifically, and Qt for macOS generally.