Build and reuse recipes
Create unlimited recipes with batch targets, fermentables, hops, yeast, other ingredients and ordered steps. Duplicate a recipe to make the next version while keeping the original.
Homebrew Calculator: Brew Day
One place for your whole brew day.
Build recipes, correct gravity readings, run hop timers and keep a useful record of each batch on your iPhone.
View on the App StoreTurn measurements into a next step
Use dilution and gravity adjustments, hydrometer temperature correction, fermented refractometer correction, Brix/SG conversion, strike-water temperature and estimated ABV. Check units and assumptions before applying a result.
Follow a batch from prep to packaging
Start from a recipe and keep its snapshot, completed steps, measurements, named timers and notes together. Hop additions use boil time remaining; local notifications and Live Activities help you follow the next action.
Keep a journal you can use again
Review past batches, repeat an existing plan, or export a complete summary and CSV. Recipes and records stay on your device unless you choose to share them.
A look inside the app
Before you start
Recipes are always unlimited. Your first tracked brew is free without a subscription. Lifetime and Monthly unlock unlimited tracked sessions. Monthly auto-renews until cancelled. Calculations are estimates and do not establish fermentation completion or food safety.