I've downloaded it and played with it a bit, but I think there's a few things missing that would keep me using it on brew day.
All the units are in really weird increments, like a batch size of 672 fl oz and mash in with 350 fl oz. I changed the batch volume and mash volume units to be gallons and quarts, but nothing changed. Same thing with the ingredients. Adding 200 oz of 2 Row doesn't make any sense to me.
There's no input for mash tun/grain temp. This is not something I would usually determine beforehand. I enter those details when my water is heating up.
I batch sparge, but it completely skips over the batch sparging step. It just tells me to remove the grains and add water to end up at 850 fl oz.
And I guess you designed this for tablets, but I would much rather use portrait mode on my phone. Much easier to type that way (Galaxy Nexus). I never landscape anything except videos or games.
As for the units, reopen your recipe after you have changed the units, im working on fixing this so you dont have to reopen your recipe to get it to show the right units.
The grain/mashtun temp is something Im not entirely sure about (as I dont use a mashtun, I do BIAB) so not sure of the calculations all needed to determine that on the fly, Ill add it to the list of things to look into, but not sure im going to be able to get that in there, might be something you have to guesstimate before hand: Edit: Looked at the difference and how it affects temps, correct me if Im wrong, but what this determines/effects is the strike temp of the water before you put the grains in. Now from my quick playing with beersmith with this, the difference of 5 degrees Fahrenheit affects the temp by 0.2 degrees fahrenheit for the temp. Now I like to be as exact as the next person (hence one of the reasons i made this app) but that definately seems like I know the temp of my equipment (typically the temp of my garage) within 5 degrees F before I go to brew. Not saying I wont look into it, but without more interest from others for this feature its gonna be put pretty low on the priority.
It was initially designed for tablets and then I made a phone version as well, however portrait mode is on the list of features to add in the near future, requires a little rewrite on some things though and I want to update the timers to make them work smoother first.
Sparge Steps will eventually be in there, again not something I do with BIAB so need to figure out how BeerSmith calculates the amount for each sparge and then I can put it in. The BeerSmith BSMX files and BeerXML files only give so much information, a lot is calculated by beersmith and since Im not affiliated with beersmith dont have access to how those are calculated and have to figure it out for myself.
This will be updating frequently until I deploy in september, then the updates will slow quite a bit, but most likely it will be pretty polished by then and not need updates.