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Refracto

Refracto

Homebrewing Brix Calculator

15 ratings
21 reviews
🔧 Utilities
🍔 Food & Drink

Archived App (Last seen on 5 Jul 2025)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
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Details

  • Released
  • Updated
  • January 28, 2015
  • March 20, 2024

Developer

Michael Schmidt
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About

This tool helps homebrewers convert refractometer readings from °Brix to °Plato and SG. It automatically accounts for alcohol content during fermentation, providing original gravity, apparent final gravity, attenuation, and alcohol by volume.

✓Convert Brix to Plato and SG
✓Alcohol compensation
✓Calculate original gravity
✓Calculate apparent final gravity
✓Calculate apparent attenuation
✓Calculate alcohol by volume
✓Multiple computation modes
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What's New in Refracto

2.0.2

March 20, 2024

Minor bug fixes and improvements.

User reviews

Most RecentHighest RatedLowest Rated

Essential tool for any home brewers

I absolutely love this app! Makes using my digital Refractometer throughout the brewing session up until FG reading a breeze.
chusli007chusli007

Works great

Easy to use
Queen Bee ColoradoQueen Bee Colorado

Easy to use

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.
erniewjrerniewjr

Correction Factor - Narrow Range

I like the app and think it could be a handy tool on Brew Day, but I need a Correction Factor of less than 1.0 for my Refractometer so that makes this app of no use to me unfortunately.
scott.priebescott.priebe

Great little tool

This great little tool has made the transition with me from home brewing to pro brewing. Doing a lot of online searching for information, it's really handy to convert the various measurement scales you run across. Now if it only had a button that would permanently eliminate the dreaded PPG from the world…perfection.
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FAQ

What is Refracto used for?

Refracto is a utility app designed for homebrewers. It helps you convert your refractometer readings from °Brix to °Plato and Specific Gravity (SG), while also automatically compensating for the alcohol produced during fermentation.

What information does Refracto provide?

After you input your refractometer readings, Refracto calculates your original gravity in °Plato and SG, apparent final gravity in °Plato and SG, apparent attenuation, and alcohol by volume.

Can I use Refracto without a refractometer?

No, Refracto requires you to have a refractometer with a Brix scale to take your measurements. The app then uses these readings to perform its calculations.

What is the input range for Refracto?

The supported input range for refractometer readings in Refracto is from 0 to 50 °Bx. Readings outside this range may not be accurately processed.

How often is Refracto updated?

Refracto was last updated on March 20, 2024, with version 2.0.2. This indicates the app is actively maintained.

What devices is Refracto compatible with?

Refracto is available for iPhone and iPad devices. It is designed to work on Apple's mobile operating systems.

What are the different computation modes in Refracto?

Refracto offers four different computation modes: Standard, Linear formula according Petr Novotný, Quadratic formula according Petr Novotný, Linear formula according Sean Terrill, and Cubic formula according Sean Terrill.

What is the age rating for Refracto?

Refracto has an age rating of 17+. This is likely due to the subject matter of alcohol production, even though it is for homebrewing.