Report updated May 11, 2026
Brewing Calculator
For homebrewers and craft beer enthusiasts requiring precise measurements for recipe formulation and brew day management.
Brewing Calculator is an established food & drink app that is completely free. With a 3.5/5 rating from 180 reviews, it shows polarized user reception. Users particularly appreciate core brewing calculations provide reliable support for daily alcohol percentage and conversion tasks, though inaccurate gravity and conversion math leads to erroneous results for specific brewing ingredients remains a common concern.
What is Brewing Calculator?
Brewing Calculator is a utility app for homebrewers providing gravity, alcohol, carbonation, yeast, and IBU calculations on iOS and Android.
Users hire this app to manage the mathematical complexity of craft beer production, relying on it for precise recipe formulation during the brew day.
Current Momentum
v1.0 · 4mo ago
Zombie- Upgraded SDK in latest Android release
- Maintained ad-free utility model
Active Nemesis
Fragmented niche
No dominant direct rival identified yet — see Other Rivals below.
Other Rivals
7-Day Rank Pulse 🇺🇸
Food & DrinkNo ranking data
Rating Pulse 🇺🇸
Recent User MoodAI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.
What makes this app unique?
How Is The App's Momentum Right Now?
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What Are The Key Features?
Instant conversion between Specific Gravity, Plato, and Brix for recipe development.
Calculations operate without an active internet connection.
The application provides tools without interstitial or banner advertisements.
How much does it cost?
- Free access to all calculation tools
The app operates as a free utility with no subscription or IAP gates, relying on ad-inventory on the Android platform.
Who Built It?
Bartosz Lampart
View Publisher Intel →Enrichment in progress
Publisher profile available very soon
What other apps does Bartosz Lampart make?
What do users think recently?
Medium confidence · 18 reviews analyzed
What is the recent mood?
Recent user voice shows a mixed sentiment. Users appreciate core brewing calculations provide reliable support for daily alcohol percentage and conversion tasks, but report inaccurate gravity and conversion math leads to erroneous results for specific brewing ingredients.
Limited review volume (18 reviews). Sentiment analysis will deepen as more data lands.
What is the competitive landscape for Brewing Calculator?
How's The Food & Drink Market?
Market outlook for this category
Available very soon
The rivals identified
Peers
Includes a built-in kitchen timer and reminder system that adds functional value beyond simple ingredient math
Features a creation diary that allows users to log their progress and results over multiple baking sessions
Features a highly refined yeast quantity suggestion engine that simplifies complex fermentation timing for home bakers
Boasts a significantly larger user base and review volume, establishing it as a trusted industry standard
Focuses exclusively on dough hydration and fermentation math rather than general-purpose brewing or liquid conversions
Includes a step-by-step preparation guide that provides higher utility for beginners compared to a raw calculator
Integrates directly with smart brewing hardware for real-time temperature and fermentation monitoring during the brew
Provides a massive community-driven recipe database that creates significant network effects for homebrewing enthusiasts
New Kids on the Block
Specializes in sourdough-specific feeding ratios which provides a more focused UX for that specific user segment
Allows for highly customizable parameters that cater to advanced bakers needing non-standard ingredient scaling
The outtake for Brewing Calculator
Strengths to defend, gaps to attack
Core Strengths
- Offline-first architecture enables reliable brew-day access in environments without connectivity
- Ad-free interface minimizes cognitive load during active brewing sessions
Critical Frictions
- Mathematical errors in gravity and brix conversions erode user trust
- Input fields fail to accept decimal values for volumes under one liter
Growth Levers
- Hydrometer temperature correction tool would address a high-frequency user request
- Integration of a recipe-logging diary would increase session frequency
Market Threats
- Grainfather's hardware-integrated ecosystem siphons power users seeking professional-grade control
- Competitors with verified math engines capture the precision-focused hobbyist segment
What are the next best moves?
Audit and rebuild calculation logic because gravity and brix conversion errors are the #1 complaint theme → restore user trust and rating baseline.
High-frequency complaints regarding math accuracy indicate a critical failure in the core utility.
Trade-off: Pause the recipe-logging diary feature development — core utility stability takes precedence over new features.
Ship decimal input support because small-batch brewers report inability to scale recipes accurately → increase utility for the craft segment.
User feedback highlights input limitations as a barrier for small-volume recipe scaling.
Trade-off: Same-quarter capacity available — no major lever displaced.
A counter-intuitive read
The app's lack of monetization is its primary growth barrier, as the absence of a paid tier prevents the developer from funding the high-fidelity math engine required to compete with professional-grade alternatives.
Feature Gaps vs Competitors
- Hardware integration (available in Grainfather Community but absent here)
- Recipe creation diary (available in Pizza Dough Calculator but absent here)
- Hydrometer temperature correction (requested by users and missing here)
Key Takeaways
The app provides essential utility for homebrewers, but mathematical inaccuracies in gravity calculations undermine its reliability, so the PM must prioritize a logic audit to prevent power users from migrating to hardware-integrated competitors.
Where Is It Heading?
Mixed Signals
The homebrewing utility market is consolidating around tools that offer verified precision and hardware connectivity. Brewing Calculator remains exposed due to its unverified math engine, so the PM must pivot from maintenance to logic-verification to prevent churn to precision-focused rivals.
Mathematical errors in gravity conversions lead to user frustration, which compounds the rating drag already visible on the Android platform.
The ad-free, offline-first utility model retains a core user base that values simplicity over complex, hardware-integrated ecosystem features.