Beer Engine, a work in progress, is a recipe design programme for home brewers. It is meant to be an easy-to-use recipe designer that is rather more Euro-centric (well, world-centric) than most of the other offerings. It is free software, but remember that this is a work in progress.
I'm a french brewer, I use it for year and found it very easy and useful, i use it for each brew on windows, not so easy on ubuntu with wine wich is a little problem ... many thanks graham
I always start a new brew with this beer engine for calculations. There seems to be a problem downloading it onto my tablet.
Useful piece of kit. Saves all the working out. Never brew without it.