Winemaker's Notebook (com.MakerNik.winemakersnotebook) on Google Play
Home winemakers benefit from recording each step in a journal or notebook. With this app you'll get notifications when you need to rack your current batches, or when you need to taste that finished batch that is aging in bottles. The notes help when making future batches and comparing outcomes, so you know what you did to make such a fine wine again.