Refracto

After using this app, I'm going to put my hydrometer on a dusty shelf. This app and your refractometer will take your brew from original gravity to complete fermentation. All you need to do is record the Brix OG, then check a refractometer reading at appropriate points in the process. The app will give you SG and ABV. Beats the heck out of a thief tube and hydrometer.

This is the easiest refractometer calculator I've found online. It auto-compensates for fermentation and seems pretty accurate when compared to the others. I like how all the relevant results show up at the top, no scrolling down or re-entering info to get more. This is the one I'll be using from now on.

This app is very easy to use. My only problem with the app is it will not calculate FG below 1.000 for my wines and meads.

At 569 Kbytes, this is a purpose built tool for brewers of all stripes. It also supports multiple algorithms for conversion and the scale values are persistent from one execution to the next (which is GREAT if you are tracking a fermentation). Simple to use and easy to calibrate if you have both a Hydrometer and a Refractometer to plug in the correction factor. The dual theme GUI (light and dark) is a plus as well. Kudos

I have been using this on several batches of home brew & comparing with hydrometer readings. It is very close to my hydrometer & use a lot less brew to get your ABV. I’m surprised at how well it has compared. I have tried other apps like this that were way off & unless.