Beersmith also has a Linux version, which is fantastic. If I'm not mistaken, there is an andriod app as well.
It looks like there are lots of online brew sheet/calculators, like the one at brewersfriend. If you want something installed take a look at brewtarget. These are free options. I find the brewersfriend.com beer recipe calculator to be sufficient for my current needs, as it lists a plethora of ingredients, has adjustable batch and preboil volumes as well as adjustable efficiency, and calculates my pre-boil gravity, IBUs, and OG and gives me an idea about the styles of beer that it might match.
Not that I have anything against Beersmith, the free trial looks great and the blogs, podcasts and vidcasts on that site are a fantastic source of information. I might one day buy their software, I just don't see a reason to right now.