Can I load Beer Smith on 2 computers I own

I have Beer Smith loaded on my iMac desktop  but have recently acquired a MacBook Air laptop. The laptop is handy for carrying out to wherever I might be brewing, garage or back yard.
Can I load or download another B.S. 3 or would I have to delete the copy on my desktop?

It should be as simple as installing Beersmith on you macbook air and then enter your key. It is good for two computers as long as both computers are for personal use.

Kevin 58,
Thank you for responding, I should of thought of that..
Happy Brewing!