The brewing numbers.
ABV, attenuation, strike-water temperature, brewhouse efficiency, bitterness, color, carbonation, and more.
← Meet the BuddiesYour brew day.
ANDROID · IN PREVIEW
Your brew day.
Less guesswork.
Brew Buddy Toolbox
Calculators, conversions, and references for the numbers that come up on brew day. All in your pocket. Even when the Wi-Fi isn’t.
Preview in development · Android 8.0+ · Public release and pricing to be announced
View changelog
No account neededWorks offlineNo ads in the appMade for brew day
A TOOLBOX, NOT A TO-DO LIST
Open it. Work it out.
Get back to brewing.
The right conversion.
Move between volume, weight, temperature, pressure, and length. US and Imperial measures are clearly labeled.
The thoughtful details.
Save favorite tools, search the menu, choose US or metric defaults, and pick a light, dark, or system appearance.
A LITTLE TASTE OF THE TOOLBOX
Let’s do
the brew math.
Try this simple ABV estimate. Enter your original and final specific gravity to see the approximate alcohol by volume.
Website demonstration using the app’s standard formula:
(original gravity − final gravity) × 131.25.
An estimate, not a laboratory measurement.
A FEW HELPFUL ANSWERS
Before your next brew.
Can I install it from Google Play?
The Toolbox is currently a working preview. Register your testing interest and we’ll share access details when a test is ready. Public availability and pricing have not been announced.
Do I need a My Brewing Buddy account?
No. Brew Buddy Toolbox is a separate, standalone app. Its calculators, conversions, and bundled references work without an account or internet access.
Does it include recipes or an AI assistant?
The Toolbox focuses on calculations, conversions, and reference information. For recipe creation and management, explore My Brewing Buddy.
Where can I read the privacy policy?
Read the Brew Buddy Toolbox privacy policy. The app also includes an offline copy.
MADE BETTER, ONE UPDATE AT A TIME
What’s new in
Brew Buddy Toolbox.
The story so far, from the first preview to our latest improvements. This history includes development builds; availability can differ by testing track. Dates describe recorded development updates, not necessarily app store releases.
Privacy information, wherever you brew
- Updated the bundled offline privacy policy to match the published policy.
- Added View public privacy policy, which opens the policy in your browser.
- The app’s calculators and references still work offline, without an account or direct network access.
This is the current development preview. Public release and pricing have not been announced.
A bigger toolbox for brew day
- Expanded the app to 16 offline calculator forms covering fermentation, brewing, carbonation, vessel volume, and distillation planning.
- The expanded collection includes bitterness, beer color, priming sugar, force carbonation, vessel volume, and additional distillation tools.
- Kept the calculator menu searchable and grouped so the right tool is easier to find.
- Extended input and result preservation across tab navigation and Android screen recreation.
Your first pocket brewing toolbox
- Introduced the standalone Android preview with offline calculators, conversions, and reference tables.
- Added search, favorite tools, US or metric defaults, and Light, Dark, or System appearance.
- Added copyable results and an offline privacy screen.
- Built the app without account sign-in, advertising, analytics, or direct network access.
GOOD APPS START WITH GOOD CONVERSATIONS
Pull up a seat
at the workbench.
Have a small problem that needs a helpful app?
Want to try what we’re making? You’re our kind of person.