How often may i use "Enfold"?

Hello,

i bought the Enfold Theme and made 2 sites with it. Now I will start my own business and webdesign will be part of it. A friend (who recommended) Enfold told me that i can use the Theme for as many sites as i wish if i bought it once.

I am not so sure it this is true ;)

And I do not want to get problems nor my clients.

(How often) Can I use Enfold for clients site’s if I bought the normal licence for $ 60 (themeforest.net) ?

Kind regards
Michael Pfleger