BrewCalc: Homebrew Calculators

Your recipes shouldn't live on someone else's server — and your calculator shouldn't bill you every year. BrewCalc is a complete homebrewing toolkit that works entirely on your phone. Pay once, brew forever. 8 calculators, laid out along your brew day: • ABV — standard & alternate formulas, apparent attenuation, calories • IBU (Tinseth) — multiple hop additions, pellet/whole, per-addition breakdown • Beer color (SRM/EBC, Morey) — with a live color preview in the glass • Grain bill % — weights to percentages, or split a total by ratio • Dilution & gravity — add water, boil down, or add sugar to hit a target • Mash efficiency — measured OG vs. your grain bill's potential • Priming sugar — by style and beer temperature; corn/table/DME • Hydrometer temperature correction The formulas you already trust. Tinseth's utilization model, Morey's color equation, the standard density correction — cross-checked against the published references, down to the decimal. Recipes and brew logs, on your phone. Build recipes with ingredients and targets, start a brew log on brew day, track gravity and temperature readings on a timeline. Export a backup file anywhere you choose — including your own cloud drive. Share a clean recipe card when you want to show off a batch. US and metric units on every calculator — switch any time, your inputs convert. Private by design. No account. No analytics. No ads. The app makes no network requests — your recipes never leave your phone unless you export them yourself. Free: the ABV calculator, plus 3 recipes and 3 brew logs. One single purchase of $5.99 unlocks everything — all 8 calculators, unlimited recipes and logs, backup export, recipe cards, batch history with CSV. That's less than one year of a typical brewing-app subscription, and it's yours for good. Results are estimates for homebrewing reference. Please brew responsibly and follow your local laws on home brewing.