मुफ़्त (muft) means free of cost, मुक्त (mukt) is free as in freedom.

मुफ़्त नहीं। मुक्त (muft nehi, mukt) reads like "not free (of charge), but free as in freedom."

muft = gratis, ''free as in beer'', mukt = open, ''free as in freedom''

not free, freedom