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For homebrewing

HopNote — homebrew notebook
Recipes, brew log and calculators

Data stays on the device. Calculate at the kettle without a network. Core features — no required subscription.

Core features free · No required subscription · Offline

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ABV calculator

Estimate strength from original and final gravity. More calculators — IBU, carbonation, dilution.

5.25
% ABV

Formula: (OG − FG) × 131.25 · the rest of the calculators are in the app

Calculators

Calculators instead of spreadsheets

Same list as in the app. ABV, IBU, carbonation and dilution run here — the rest offline, at the kettle.

01ABVAlcohol percentage in finished beer 02IBUBitterness from hops 03EBC and SRMColor of the future beerin the app 04HydrometerTemperature correction of readingsin the app 05RefractometerWRI, wort factor, ABVin the app 06CarbonationCO₂ amount in bottles or kegs 07WaterWater chemistry for beerin the app 08PrimingPriming sugarin the app 09DilutionBeer dilution 10Yeast pitchYeast pitch ratein the app

Features

Everything a homebrewer needs

From the first recipe to tasting notes — HopNote covers the full brew cycle.

Beer recipes — IPA to stout

Recipe builder with grain, hops, yeast and style profile. From scratch or from an in-app preset.

Browse presets
  • Pilsner
  • Hefeweizen
  • Pale Ale
  • IPA
  • NEIPA
  • Stout
  • Porter
  • Blonde
  • Mead

Brew log

Mash rests, hops, OG/FG and notes. The batch history, not a chat thread.

Fermentation

Gravity by day, temperature and dry hop — next to the brew record.

Calculators

ABV, IBU, carbonation, SRM, water — offline, at the kettle.

All calculators

Process

How HopNote works

Three steps from idea to finished beer — every stage logged.

01
Mash

Build a recipe

Pick a style, set ingredients and numbers. Calculators fill in ABV, IBU and color.

02
Boil

Log the brew

Capture steps, temperatures, gravity readings and notes during brew day.

03
Done

Track the result

Follow fermentation, taste and take notes for the next batch.

Who it’s for

First brew or the three-hundredth

One log. Two doors: guidance for a first batch, history for repeat brews.

Beginners

First batch without spreadsheets

  • Recipe presets and a log for rests, gravity and notes
  • Calculators instead of someone else’s Excel
  • Units you already write down: SG, °Plato, °C
  • Data on the phone — no account, no network required

Experienced

Batch history, not guesses

  • Replay a recipe with last OG/FG, IBU and notes
  • Water, priming, yeast and color — in the same calculators
  • Fermentation next to the brew record, not in a chat thread
  • Offline at the kettle, no required subscription for the core log

Compare

Why brewers pick HopNote

Core features without a required subscription. Data on the device, no network required.

HopNoteNotebookSpreadsheets
Brew log✓✓partial
ABV, IBU calculators✓—manual
Fermentation tracking✓——
Core featuresno required subscription✓✓
Extra featuresoptional——
Works offline✓✓—
History of all brews✓messyawkward

Plans

What's free and what's in Pro

In the app. Core features need no subscription; Pro is optional. Prices are in the store.

HopNote free vs Pro feature comparison
Feature Free Pro
Recipes, templates, brew log, fermentation✓✓
Offline, data on the device✓✓
ABV, IBU, SRM calculators✓✓
Additional calculators (carbonation, water, priming, dilution, hydrometer, refractometer, yeast)—✓
Recipe import / export—✓
Delete recipes and brews—✓
CSV export—✓

Download HopNote

Library

Brewing topic pages

Short topic pages if you want more than the homepage.

Guide

Homebrew app

Why a digital brew notebook — and how HopNote covers recipe to tasting.

Read

Recipes

Beer recipes

Styles, ingredients and the recipe builder — IPA, stout and more.

View

Log

Brew log

Steps, gravity, notes — each batch’s history on the device.

Open

Guides

Brewing guides

First brew, equipment, fermentation and common off-flavors.

Read

Calculators

ABV, IBU, carbonation

Online ABV, bitterness, priming sugar and wort dilution.

Calculate

Frequently asked questions

What is HopNote?

HopNote is a brewer's notebook for recipes, a brew log, and calculators. Data stays on the device; core features work without a required subscription.

Is HopNote good for beginners?

Yes. HopNote works for a first brew: recipe templates, a log with rests, gravity and notes, plus calculators instead of spreadsheets and Excel.

Which calculators are in the app?

The site has ABV, IBU, carbonation and dilution calculators; the app also has EBC/SRM, hydrometer, refractometer, water, priming and yeast.

Do I need the internet?

No. Core HopNote use is offline: data stays on the device, and core features work without a network. The site has separate ABV, IBU, carbonation and dilution calculators.

How much does HopNote cost?

The core set (recipes, templates, brew log, ABV/IBU/SRM) is free, with no required subscription. Additional calculators, import/export and CSV are in Pro. Prices are in the store.

Log the next brew

HopNote on your phone: brew log, recipes and calculators. Core features without a required subscription.

App Store Google Play