Test complete setup for different OS

Hi 

I am new to test complete.

I need to create and run test suite on Windows , MAC and IOS OS. also need to run on different broswers. 

So in that way i have different client machines. 

Can anyone suggest how to proceed ? ..

Do i need to  install Testcomplete in all client machines. 

What type of license need to procure. 

Please suggest

Thanks 

Hitesh