Brewmaster vs Bloom Session
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.
Bloom Session
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The definitive specialty coffee archive crafted for your perfect cup. From tracking bean degassing to fully customizing recipes and equipment, logging WCR-standard sensory notes, and exploring lifestyle statistics—enjoy a focused, distraction-free brewing experience. Smart Bean Management • Full Support for Single Origins & Blends: Manage detailed coffee bean profiles, including origin, processing method, roastery, and variety. • Degassing Tracker: Automatically monitor and track the peak flavor window based on the roast date. Precision Brewing Sessions • Seamless Environmental Tracking: Automatically record environmental factors alongside beans and recipes, including location, weather, temperature, and humidity. • Aesthetic Share Cards: Generate and share your brewing records as sleek, beautifully designed card images. Global Standard Sensory Logging • WCR Lexicon 2.0 Standard: Systematically log professional flavor notes based on the World Coffee Research (WCR) Sensory Lexicon Version 2.0. • Comprehensive Cup Evaluation: Combine star ratings with sensory descriptors to archive cup quality and your evolving personal taste. Custom Recipe & Equipment Builder • Unlimited Recipe Customization: Brew with curated default recipes or create, customize, and edit your own from scratch. • Flexible Gear Profiling: Register your drippers, filters, grinders, grind settings, and accessories, matching them seamlessly to individual recipes. • Precision Step-by-Step Pour Planning: Fine-tune dose, water volume, brew ratio, water temperature, total brew time, and specific parameters for each pouring stage. Data-Driven Taste Insights • Comprehensive Dashboard: Visualize bean consumption patterns, brewing frequency, and flavor profile distributions at a glance. • Lifestyle Insights: Track how your daily coffee rituals and sensory preferences evolve through data. Pure Experience • No in-app purchases, paid subscriptions, or ads—just a completely pure, transparent, and distraction-free logging space. • Data is stored in your device or iCloud. • Sync with iCloud seamlessly.
Screenshots
Verdict
The clearest difference is update cadence: Bloom Session at every 10 days against Brewmaster's monthly. Brewmaster's advantage is iOS requirement (16.6 vs 26.0). On price, ads, in-app purchases and device support 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 ships an update monthly, Bloom Session every 10 days. Both last shipped on October 29, 2026.
| Parameter | Brewmaster | Bloom Session |
|---|---|---|
| Price | Free | Free |
| Rating | 1.7 (18 ratings) — better | — |
| Positive reviews | 17.5% of reviews | — |
| Number of ratings | 18 — better | — |
| Update frequency | Monthly | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 26 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | acaia | HeeChan Jeong |
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
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- 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
Bloom Session
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Brewmaster
No in-app purchases
Bloom Session
No in-app purchases
Questions
Is Brewmaster free?
Is Bloom Session free?
Do Brewmaster or Bloom Session have ads?
Which is updated more often, Brewmaster or Bloom Session?
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