I have come across this twice now, I get a different final gravity estimate when I sync a recipe with the app (iPhone version), than my recipe shows in the online version. For example, a recent recipe using Safale US-05 gave me a final gravity estimate of 1.4P online and then the sync'd version on my phone gave me 2.1P. I think this might be because the attenuation rate for US-05 is different online than in the app. The online version gives an avg. attenuation rate of 81% (this is inline with the data sheet from Fermentis: http://www.fermentis.com/wp-content/uploads/2012/02/SFA_US05.pdf), but the app gives an avg. attenuation rate of 75%. Shouldn't both attenuation rates be the same? Is one more realistic than the other? Thanks for any clarity on this! ps - I also just noticed that the app did not sync the beer style (Berliner Weisse incase you were wondering why the final gravity estimate was so low). Maybe these are just bugs that are already planned to be fixed?