Brewing Calculator is a utility app for homebrewers providing gravity, alcohol, carbonation, yeast, and IBU calculations on iOS and Android.
Product velocity
Dormant
Daily rank 🇺🇸
—
Food & Drink
Sentiment
3.5
180 reviews
Nemesis
Fragmented field
The App DNA
What makes this app unique?
Users hire this app to manage the mathematical complexity of craft beer production, relying on it for precise recipe formulation during the brew day.
For Homebrewers and craft beer enthusiasts requiring precise measurements for recipe formulation and brew day management.
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?
The app operates as a free utility with no subscription or IAP gates, relying on ad-inventory on the Android platform.
Velocity
Dormant developmentopaqueShow more...
The app has been inactive for more than 14 months, falling well outside the threshold for active development. With no releases since early 2024, the project shows no signs of ongoing maintenance or feature updates. The development momentum is effectively non-existent based on the observed data.
Who built it?
User Sentiment
What do users think recently?
Fresh user feedback skews mixed. Users appreciate core brewing calculations provide reliable support for daily alcohol percentage and conversion tasks.
How are ratings & reviews evolving?
What users say, by theme
- Core brewing calculations provide reliable support for daily alcohol percentage and conversion tasks
- Inaccurate gravity and conversion math leads to erroneous results for specific brewing ingredients
18 of 18 recent reviews analyzed · moderate confidence · Mixed overall
Read the full review analysisUnlock 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Brewing Calculator
How's the Food & Drink market?
The app maintains a 3.5-star rating on Android with 180 total ratings, but the lack of recent feature updates leaves it vulnerable to specialized competitors. The absence of a paid tier limits revenue potential while the mathematical accuracy complaints stall growth in the precision-hobbyist segment.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for Brewing Calculator
Where is it heading?
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.
The SWOT
- Offline-first architecture enables reliable brew-day access in environments without connectivity
- Ad-free interface minimizes cognitive load during active brewing sessions
- Hydrometer temperature correction tool would address a high-frequency user request
- Integration of a recipe-logging diary would increase session frequency
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.
+ 1 more prioritized moveThe counter-intuitive read
The app's lack of monetization is its primary growth barrier…
Read the full takeFeature gaps
Hardware integration (available in Grainfather Community but absent here) +2
Since the last report: The product assessment shifted from a focus on feature stagnation to a focus on core utility failure due to identified mathematical inaccuracies.
Bottom line
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.
Unlock 2 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
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