Roastmaster vs Tastelab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Roastmaster
This app helps coffee roasters achieve consistent, perfect cups by tracking roast data, managing green bean inventory, and facilitating blend creation. It offers detailed reporting, visual analysis tools, and optional thermocouple integration for automated roasting.
- Roast data tracking and analysis
- Green bean inventory management
- Blend creation and experimentation
- Cupping score recording
- Automated roast reminders
- Roaster maintenance scheduling
- Optional thermocouple data logging
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Precision roast profiling is only the beginning. Roastmaster goes far beyond managing your workflow and cataloging your data. By integrating your workflow, data, and analysis, it reveals insights that would otherwise go unnoticed—the patterns within your data and the story they tell. Whether you're pursuing the perfect cup or a stronger bottom line, Roastmaster helps you understand how the pieces fit together—bringing a gestalt to coffee roasting. KNOW YOUR INVENTORY Your inventory is more than a tally. It's a living picture of your coffee’s potential. Every origin, process, harvest, lot, and purchase tells part of the story. Roastmaster makes every detail of your inventory easy to explore and understand visually. PLAN WITH CONFIDENCE Keeping inventory stocked is about more than avoiding shortages. It's about keeping the coffees you need when you need them. Roastmaster helps you leverage seasonal trends and historical usage patterns to plan your orders with confidence. MONITOR BEAN QUALITY Coffee is always changing. Harvests, seasons, and even individual lots all influence quality. Roastmaster preserves that history over time so you can understand how it affects both flavor and consistency from one roast—and one season—to the next. LOG VIRTUALLY ANYTHING Roasting is the heart of it all—and Roastmaster has plenty of heart. Whether you're logging temperatures from supported probe hardware, gas pressure from DIY Bluetooth electronics, or entering readings manually, Roastmaster adapts to the way you roast…and never forgets a detail. LEARN FROM EVERY ROAST Every roast is an opportunity to improve the next. Roastmaster helps you capture what worked, learn from what didn't, and build a library of profiles that evolves with your experience. Create profiles manually, from completed roasts, or even target previous roasts on the fly. STAY ON COURSE Monitor temperature projections, roast phases and key milestones in real time so you can make confident decisions as you roast. Profiles, targeted roasts or auto-trigger events can provide audible alerts to make sure you don’t miss a thing. ELEVATE YOUR WORKFLOW Spend less time preparing roasts and more time roasting. Roastmaster streamlines setup, lets you create new roasts from existing data, and even prepares production runs to meet a desired yield. CREATE YOUR BRAND TASTE–AND KEEP IT Beans change from crop to crop, but your signature flavor doesn't have to. Build a library of custom blends, experiment with snapshots to refine every recipe, and preserve the character your customers expect from season to season. EVALUATE FOR EXCELLENCE Every cup has something to teach. Whether you're rating a morning brew or conducting a formal cupping session, Roastmaster helps you capture the details with multiple tasting protocols, intuitive scoring tools, and visual comparisons that connect every evaluation back to the decisions that shaped it. READ THE STORY Why collect data if you never stop to understand the story it tells? Roastmaster's powerful analytics reveal how beans, lots, roasts, blends, and all their quality, varietal, and cost attributes shape both flavor and business outcomes. It helps you see the complete picture—and make better decisions because of it. Roastmaster is free to download and explore. Features vary by subscription tier. Learn more at rainfroginc.com. Privacy Policy: https://rainfroginc.com/privacy-policy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Tastelab
This app condenses essential cooking knowledge, offering calculators, ratios, and guidelines for various culinary techniques. It provides scientific principles and data for methods like sous vide, fermentation, and dehydration, aiming to simplify and enhance cooking for both experts and home cooks.
- Condensed cooking knowledge
- Calculators and ratios
- Sous Vide, Fermentation, Pickling guides
- Dehydration and Candying information
- Step-by-step culinary guidelines
- Universally usable cooking principles
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Condensed cooking knowledge with calculators, ratios, times and temperatures. All you need for Sous Vide cooking, Fermentation, Pickling, Curing and Candying, Dehydration and more. COOKING KNOWLEDGE. CONDENSED. Ratios. Principles. Calculators. All the kitchen data you ever wanted and needed in one simple app. No fluff. No single-use recipes. Just general cooking facts and numbers to improve your cooking. We read dozens of books, turned thousands of pages, compared hundreds of recipes and tables to get down to the science of cooking methods. The result? Easy-to-understand and universally usable culinary guidelines. Why? So you don't have to do the tough work. We did this for ourselves, but we know there are many cooking nerds out there. You are welcome. We are relentlessly researching and adding new theme brackets, so this is an ever growing kitchen reference. Included theme brackets: - Sous Vide Cooking Times and Temperatures for Meat (with cut conversions and synonyms), Poultry, Fish, Seafood, Vegetables, Fruits and Eggs - Fermentation including Sauerkraut, Kimchi and many more - Vinegar - Fermented Beverages: Ginger Beer, Kombucha and Shrubs - Black Fruits and Vegetables - Pickling - Salt-Curing - Candying - Dehydration - Flavoured Oils and Fats - Brining Pro content coming soon: - Pasteurisation and Sterilisation - Pressure Cooking - Deep Frying - and so much more! Key features: • COOKING KNOWLEDGE. CONDENSED. All our cooking knowledge in one single app, complete with cheat sheets, step-by-step guidelines, sample recipes, ratios and calculators. Use it as a source to refresh your memory or as a tool to learn different culinary techniques. • NO FLUFF. Cooking facts, presented in a simple and effective way to help you develop your knowledge and simplify your cooking. The Tastelab app is designed to help the expert chef and ambitious home cook save time and learn along the way. All the information you need, in one place, just one click away. • SOUGHT-AFTER THEME BRACKETS. Browse through Sous Vide Cooking, Fermentation, Flavoured Oils and Fats, Brining, Pickling, Preserving, Dehydration, Candying, Salt-Curing and many more cooking methods. And it does not stop there! More exciting content like pasteurisation and sterilisation, pressure cooking, deep frying and many more will be available soon. • STEP-BY-STEP GUIDES. SAMPLE RECIPES. We introduce every cooking technique with the basics behind it and then give you some illustrative sample recipes. Learn the principles of fermentation or the ease of sous vide cooking step-by-step. We don't like single-use recipes. We give you universally useable cooking knowledge and ideas to start you off and help you explore on your own. We promise to keep adding our guides to help you learn more. • RATIOS. Do you want to get to the next level of cooking? Learn how to cook using ratios. Be it a savoury pickling brine or the ratios for your own homemade vinegar: understand the ratio behind a cooking method and easily adapt it to other recipes. • CALCULATORS. Need help adapting a recipe? Simply adjust the recipe depending on the ingredient quantity or yield. No need to close the app and open the calculator, we made it simple and hassle-free for you. • SEARCH BUTTON. Have an ingredient in mind? Feeling adventurous? Our search button enables you to type in an ingredient and discover different methods to cook it. • CELSIUS OR FAHRENHEIT. CENTIMETERS OR INCHES. Metric or imperial. Have it your way. Download the Tastelab app today! All the cooking knowledge you'll ever need - summarized, condensed, distilled down to the essentials. Currently available in English with specific keyword translated into German and French. We are always excited to hear from you! If you have any feedback, questions, or concerns, please contact us at info@tastelab.ch.
Screenshots
Verdict
The clearest difference is review sentiment: Roastmaster at 79% against Tastelab's 33%. Roastmaster also leads on price (Free vs $7.99) and rating (3.8 vs 3.0). Tastelab's advantage is in-app purchases (none vs 7) and iOS requirement (11.0 vs 26.0). On update cadence, ads 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
Roastmaster is free to download; Tastelab costs $7.99 up front. Roastmaster sells 7 in-app purchases, starting at $4.99 per month. Tastelab asks for nothing beyond the download.
Roastmaster holds the better App Store score, 3.8 against 3.0. That said, the two scores are not equally well evidenced: Roastmaster has 32 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 79% of Roastmaster's written reviews are positive against 33% of Tastelab's.
Roastmaster ships an update every 5 months, Tastelab every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Roastmaster | Tastelab |
|---|---|---|
| Price | Free — better | $7.99 |
| Rating | 3.8 (32 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 78.9% of reviews — better | 33.3% of reviews |
| Number of ratings | 32 — better | 2 |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 88 MB | 36 MB |
| Age rating | 4+ | 12+ |
| Developer | Rainfrog, Inc. | Foodlab GmbH |
Customer experience
Roastmaster
Tastelab
Bugs and requests
Roastmaster
Reported bugs
30 issues- App crashes
- Cannot connect to Bluetooth probe (specific machine)
- Cannot connect to cloud
- Increase Contrast iOS setting obscures preference settings
- App is no longer usable without buying entitlements
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- Subscription only service after purchase
- Stealth switch to subscription
- Long time users are being locked out
- App is dated
- Support for cheaper, off the shelf Bluetooth probe thermometers is nonexistent
- When making a copy of a roast, probes have to be rebound
- Cannot inventory blends
- Update today, no longer usable without buying entitlements
- Bricking the app for long time users
- Was a great app, not too sure about this latest update
- App flashes and cannot be used
- Cannot connect to cloud, Apple says it's private
- App is very unfriendly
- Features seem to change with no warning or pattern
- Sometimes able to compare roast profiles, then feature drops out
- Login screen freezes
- Incompatible with older devices
- The graph is a bit hard to read
- The dark background makes it hard to decipher graphs
- The database sometimes comes up as the old version when passed via Dropbox
- Data entry could be simplified
- The timing values are not entirely clear
- Pressing the start button when roasting closes the roast screen
- It is not entirely clear what the timing values are
- The timing values are not entirely clear
Requested features
26 requests- Add development percentage to roast screen
- Ability to store low to medium resolution image with a roast
- Ability to make a blend from existing roasts
- Support for cheaper, off-the-shelf Bluetooth probe thermometers
- Copy roast including data curve
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- Dark mode option
- Advanced analytics dashboard
- iWatch app for manual data logging
- Ability to hide unwanted sections
- Remember or save curve names and parameters when adding a curve
- Bean inventory should not go into negative numbers
- Easier to read graphs
- Can change minimum temp of graph
- Section for moisture loss percentage
- Section for development percentage
- Section for preheat temp
- Database syncing via iCloud or Dropbox
- Ability to store photos with roast profile
- Ability to import and export roast curves (csv or text)
- View several curves superimposed on one plot
- Easier to input data during a roast
- View and compare roast graphs post roast
- Type in time for timer instead of ring slider
- Data in blends based on proportions for blend roast quantity
- Enter cost with inventory to calculate cost/kg for each blend
- Ability to create blends by combining beans before the roast
Tastelab
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Roastmaster
- Basic Monthly$4.991 Month
- Pro Monthly$19.991 Month
- Premium Monthly$39.991 Month
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- Basic Yearly$49.991 Year
- Pro Yearly$199.991 Year
- Premium Yearly$399.991 Year
- Data Logging$14.99
Tastelab
No in-app purchases









