Brewmaster vs Coffee Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Brewmaster
This app logs your coffee brewing process, visualizing data in real-time with a connected scale. It helps you understand extraction, ratios, and share your brewing moments.
- Log brewing process, methods, notes, and flavors
- Real-time visualized brewing charts
- Monitor extraction amount and duration
- Coffee ratio converter
- Share brewing print cards
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Introducing “Brewmaster” Log your coffee brewing moment with Brewmaster. Using the acaia scale with the Brewmaster to create beautiful and informative visualized coffee brewing data which helps you to know your brewing better. A coffee log that does a live recording of your coffee brewing process, using acaia’s precise weighing technology, when you brew your coffee on the acaia coffee scale, whether it’s pourover or espresso, you can easily monitor the amount and the duration of coffee extraction. Features: Log-a-brew: Log your brewing process, methods, notes, and coffee flavors, brew better coffee with the acaia coffee scale. Real-time Visualize Brewing Print : improve coffee brewing with the real-time flow charts that reflects your pouring speed, flow rate, learn the way of coffee extraction and brew a mind-blowing cup of coffee with great flavor. And… Coffee Ratio Converter: Easy calculation of water to bean, or bean to water ratio. Celebrate The Moment: Share your brewing print cards with friends, remember the great times and great tastes.
Coffee Master
Scan your coffee bag and get a personalized brewing recipe tailored to its origin, roast, and your equipment. Track your brews, save favorite coffees, and share recipes with others.
- AI-powered bean analysis
- Customizable brewing recipes
- Grinder click setting calibration
- Support for 6 brewing methods
- Personal coffee library
- Brew logging and notes
- Recipe sharing
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Scan any specialty coffee bag. The AI reads origin, roast, and process — then builds a complete recipe made for THAT bean and YOUR equipment. Every coffee is different. A washed Ethiopian needs different parameters than a natural Brazilian. CoffeeMaster knows the difference and adjusts the recipe automatically. HOW IT WORKS 1. Snap a photo of any coffee bag 2. AI extracts origin, altitude, process, roast level, and tasting notes 3. Pick your method and grinder 4. Get a complete recipe: dose, water, temperature, timing, and exact grind setting BEAN-SPECIFIC RECIPES Not a generic "V60 recipe." Each recipe is calculated from the actual characteristics of your coffee. The same V60, different bean, different recipe. YOUR GRINDER. YOUR CLICKS. Stop Googling "medium-fine." CoffeeMaster knows 20+ grinders from Comandante, 1Zpresso, Timemore, Kinu, KINGrinder, and Hario — and calculates the exact click setting for every coffee. 6 BREWING METHODS V60 · Chemex · AeroPress · French Press · Espresso · Moka Pot. Configure size and variants to match your setup. YOUR COFFEE LIBRARY Every coffee you scan, every recipe you generate — saved. Track freshness, mark favorites, and re-brew any coffee with the same recipe. BREW LOG Rate each brew. Add notes. Track what works and what to adjust next time. SHARE YOUR RECIPES Found a great recipe? Share it with friends or the community with a single tap. BUILT FOR SPECIALTY COFFEE Local roaster, subscription box, souvenir from Tokyo — if the bag has coffee info, CoffeeMaster can read it. Terms of Use (EULA): https://coffeemaster.app/terms Privacy Policy: https://coffeemaster.app/privacy
Screenshots
Verdict
The clearest difference is rating: Brewmaster at 1.7 against Coffee Master's 1.0. Brewmaster also leads on review sentiment (16% vs 0%) and ratings volume (18 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Brewmaster holds the better App Store score, 1.7 against 1.0. That said, the two scores are not equally well evidenced: Brewmaster has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 16% of Brewmaster's written reviews are positive against 0% of Coffee Master's.
Brewmaster ships an update monthly, Coffee Master every 2 months. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.
| Parameter | Brewmaster | Coffee Master |
|---|---|---|
| Price | Free | Free |
| Rating | 1.7 (18 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 16.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 18 — better | 1 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 26 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | acaia | Kenaro Ltd |
Customer experience
Brewmaster
Coffee Master
Bugs and requests
Brewmaster
Reported bugs
24 issues- App crashes frequently
- Bluetooth connection unreliable
- Saved images not showing
- Data not saved or deleted randomly
- Timer skips seconds or is inaccurate
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- App crashes when accessing specific features (e.g., kettle settings)
- Cannot edit water or update profile picture
- CSV output incomplete
- App crashes on startup
- Cannot pair with scale
- Lost data after crash
- Saving photos not working
- Connectivity broken after updates
- Auto-start has significant lag
- Background process drains phone battery
- Flow rate measurement changed/inaccurate
- Cannot measure to a tenth of a gram
- Timer only begins when espresso lands in cup, not when start is pressed
- App adds extra seconds to total brew time
- Average flow rate not calculated or displayed
- Information from other apps not retrieved
- Cannot save brew curves after update
- Automatic transfer of notes from one shot to the next
- Timer on scale doesn't run if app is running
Requested features
18 requests- Hire a better software team
- Improve app stability and maintenance
- Update UI to be more modern
- Allow manual data input
- Add dark mode
Show 13 moreShow fewer
- Improve graph readability
- Add flow rate calculator
- Sync scale timer and app timer
- Allow 0.1g accuracy in timer mode
- Auto-stop feature
- Search functionality for previous brews
- Comparison of brew charts side-by-side
- Recommendations for brew ratios by coffee type
- Fix display on iPhone 6+
- Allow editing of profile name
- Change 'Tribe' to 'Brew Method'
- API documentation for third-party apps
- One unified app instead of multiple
Coffee Master
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Brewmaster
No in-app purchases
Coffee Master
No in-app purchases
Questions
Is Brewmaster free?
Is Coffee Master free?
Which has better reviews, Brewmaster or Coffee Master?
Do Brewmaster or Coffee Master have ads?
Which is updated more often, Brewmaster or Coffee Master?
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