I downloaded and installed the BrewersFriend windows app. Looks good but doesn't seem to work ok. When I enter fermentables as percentage, the app calculates the weights wrong, they are like divided by 1000, it doesn't matter if I use lb or kg, I normally use the metric-system which I understand better . For example I entered 85 % some malt to a 15 l batch with the desider OG 1.050 and the weight appeared be only 0.003 kg! Should have been about 3.5 kg... I can't find anything in the settings that could explain the behaviour. Maybe a programming fault? It is the version 18.104.22.168, I guess.