I have a limited number of free download codes for a new brewing app called BrewBot. You can check out the app here: http://itunes.apple.com/us/app/brewbot/id542237024?ls=1&mt=8 The app has 16 different calculators in addition to hop and yeast data. To make this fair, I'll send download codes to the 5 people from MHBA who give me the best reason by noon that I should send them a code. I wrote this app because I wasn't really happy with what was out there. I'm sure there's room for improvement. If you decide to purchase it I'd appreciate any feedback or ideas for additional features.