# Roastmaster — Coffee roasting toolkit

> Coffee roasting toolkit for data-driven consistency and blend perfection. (iPhone/iPad app by Rainfrog, Inc..)

- Source: https://appshunter.io/ios/app/roastmaster/id375526217 (this page in markdown: same URL + `.md`)
- Developer: [Rainfrog, Inc.](https://appshunter.io/developer/375526220)
- Category: Food & Drink, Lifestyle
- Price: Free with in-app purchases (on sale, was $9.99)
- Rating: 3.70/5 from 29 App Store ratings · 91 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.0 · 88 MB
- Languages: American English, French (France), Korean, Chinese (Simplified, China), European Spanish
- Released: 2010-06-04
- Data updated: 2026-08-29
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/roastmaster/id375526217/reviews.md

## What is Roastmaster?

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/

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Monthly | $39.99 | per month |
| Basic Monthly | $4.99 | per month |
| Basic Yearly | $49.99 | per year |
| Pro Yearly | $199.99 | per year |
| Pro Monthly | $19.99 | per month |
| Premium Yearly | $399.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Data Logging | $14.99 | one-time |


## What do users think of Roastmaster?

Overall sentiment: negative

**Pros**

- 👍 Comprehensive logging and tracking
- 👍 Great for consistency
- 👍 Feature-rich
- 👍 Useful for business and hobbyists
- 👍 Good developer support (historical)
- 👍 Integrates with hardware
- 👍 Intuitive interface (for some)
- 👍 Valuable for serious roasters
- 👍 Customizable
- 👍 Great for inventory management
- 👍 Visualizes roast data well
- 👍 Replaces manual logs
- 👍 Detailed input options

**Cons**

- 👎 Sudden subscription model
- 👎 Previously paid features now require subscription
- 👎 Locked out long-time users
- 👎 Dated interface (mentioned by some)
- 👎 Not intuitive (mentioned by some)
- 👎 Steep learning curve
- 👎 Expensive subscription
- 👎 Inconsistent feature availability (historical)
- 👎 Some users find it difficult to use
- 👎 Language limitations (historical)

**Commonly reported bugs**

- 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
- 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

**Most requested features**

- 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
- 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

## Recent user reviews (10 of 91)

All indexed reviews: https://appshunter.io/ios/app/roastmaster/id375526217/reviews.md

### 1/5 — 开始圈钱了

*2026-08-12*

之前用了好几年，挺好用的，虽然app要花钱，温控探头要花钱也可以接受，现在不充值不给你烘焙了，一年快3000块，之前下软件就交了一次费用，现在还想骗钱？

### 1/5 — Stealth switch to subscription

*2026-08-10, version 26.0.0*

I paid money for this app and now it suddenly switches to a subscription only service?  I won’t be subscribing and I advise you to find another app to use.  It is not that good.

### 1/5 — Subscription???

*2026-08-08, version 26.0.0*

I purchased the app with no mention of limited functionality and no mention of a subscription. Now I can’t use it without paying more than I was originally told. I hope the developer reconsiders his business model and grandfathers existing users.

### 1/5 — Charge you for the app and then hit you with subscription

*2026-08-07, version 26.0.0*

Been using this app for over 8 years. Updated today to find no longer usable without buying into tiers of subscriptions. Long time users are being locked out.

### 1/5 — Paid for the initial app years ago.

*2026-08-07, version 26.0.0*

After close to 2000 roasts, they change up and want me to pay $4.99/mo. 
No way! There are way too many free coffee roasting apps out there that do the same and perhaps better job of clocking roasts. Thanks but good bye! Too overpriced!

### 1/5 — Long time user, priced out

*2026-08-07, version 26.0.0*

Sad to leave, but I’m not going to pay for a feature that was previously free.  Can’t print a label now without subscription.  Sad times.

### 1/5 — More $$ after the $10 purchase

*2026-08-05, version 26.0.0*

Been using Roastmaster since 2010. Updated today, and it’s no longer usable without buying entitlements.   You should have released a new app instead of bricking the app for long time users.

### 4/5 — Needs update and more support

*2025-03-09, version 14.0.0*

I’m super excited to try this out, it is feature packed and looks intuitive. The main problem I have is that it’s a bit dated, iOS 14 vs current iOS 18 and the support for cheaper, off the shelf Bluetooth probe thermometers (ThermoPro) is nonexistent.

### 4/5 — Need help

*2023-10-11*

Hello,
I have a question:
Wenn I make a Copy of a Roast,I always have to bind  the Probst again to the sensors. how Can I Copy a roast including the Data Curve?

### 3/5 — Update?

*2022-01-06, version 14.0.0*

This app has the capability to be a great app for roasting if they update it. If you have a Behmor 1600 and only use single origins your good. I can only inventory my single origin beans, wouldn't let me list my blends that are from multiple origins. So far this is a waste of $10

## Frequently asked questions about Roastmaster

### What does Roastmaster do?

Roastmaster is a comprehensive toolkit designed for coffee roasters. It helps you achieve consistent, perfect cups of coffee by providing tools to track roast data, manage your green bean inventory, create and perfect signature blends, and score cupping sessions.

### What are the key features of Roastmaster?

Key features include detailed roast data tracking and analysis with interactive charts, automatic green bean inventory management with order reminders, tools for creating and experimenting with coffee blends, and a system for recording and scoring cupping sessions. It also offers roaster maintenance scheduling and optional thermocouple integration for automated roasting.

### Is Roastmaster free to use?

The core Roastmaster app is free to download and use. However, advanced features like automated data logging through thermocouple integration are available as an in-app purchase. This allows users to choose the functionalities that best suit their needs.

### Who is Roastmaster designed for?

Roastmaster is specifically designed for specialty and prosumer coffee roasters. It aims to enhance and speed up their workflow, helping them leverage their triumphs and mistakes to achieve consistently perfect cups of coffee.

### Can Roastmaster help with managing my coffee beans?

Yes, Roastmaster excels at keeping your green bean inventory in sync with your actual stock. You can set order reminders for low inventory, record detailed information about each bean lot (like country, trade, processing, age, cost, and moisture), and audit inventory with advanced reporting.

## Version history (last 5 releases)

### 26.0.1 — 2026-08-14

Fixed an issue where legacy users were not grandfathered into their original feature access.

Also recently added:
GENERAL
iOS 26 Support
Freemium Pricing Model
Analytics Suite
Bug Fixes
    
PRODUCTIVITY
Faster Data Engine
Window Support
Smarter Item Creation
Global App Menu
Contextual Menus
Key Commands
Streamlined Toolbars
    
ANALYZE
World Browser
Inventory Analyzer
Roasts Analyzer
Cuppings Analyzer
Data Activity Analyzer
    
INSPECT
Green In Inspector
Roasted Out Inspector
Report Builder
Save Unlimited Custom Reports
20 Default Auditing Reports
    
DECONSTRUCT
Beans Deconstructor
Bean Lots Deconstructor
Roasts Deconstructor
Blends Deconstructor
Cuppings Deconstructor
    
DATA VISUALIZATION
Histogram Data Locators
Range Visualizers
Itemizations
Bar Charts
Line Charts
Pie Charts
Scatter Graphs
Tiered Pie Charts
Radial Graphs

### 26.0.0 — 2026-08-05

GENERAL
iOS 26 Support
Freemium Pricing Model
Analytics Suite
Bug Fixes
    
PRODUCTIVITY
Faster Data Engine
Window Support
Smarter Item Creation
Global App Menu
Contextual Menus
Key Commands
Streamlined Toolbars
    
ANALYZE
World Browser
Inventory Analyzer
Roasts Analyzer
Cuppings Analyzer
Data Activity Analyzer
    
INSPECT
Green In Inspector
Roasted Out Inspector
Report Builder
Save Unlimited Custom Reports
20 Default Auditing Reports
    
DECONSTRUCT
Beans Deconstructor
Bean Lots Deconstructor
Roasts Deconstructor
Blends Deconstructor
Cuppings Deconstructor
    
DATA VISUALIZATION
Histogram Data Locators
Range Visualizers
Itemizations
Bar Charts
Line Charts
Pie Charts
Scatter Graphs
Tiered Pie Charts
Radial Graphs

### 14.0.0 — 2021-01-11

General

• iOS 14 support
• Reimagined interface–designed to be cleaner, brighter, faster and more informative
• New, advanced scale systems, such as humidity, pressure and Agtron, let you profile with more than just temperatures
• Full support for the iOS Shortcuts app, allowing you to easily integrate with other software or backend data platforms. Build comprehensive, smart workflows and run them to find and process the data you want…on-the-fly, according to a schedule, or by using Siri
• The Roast Analyzer now contains a browser to show all Events and their statuses at a glance, and static selector buttons to make Curve interaction easy
• Roast, Blend and Cupping creation helpers make these common tasks easier and faster
• Full Dark Mode support that is backed by a smarter graphing engine, and new color chooser with preview–ensuring your curves display with optimal contrast in any mode
• Smart Pull to Dismiss gesture support and other improvements make data entry easier on compact devices
• Scribble support
• List views now support multiple item export
• Brand new sounds that are controlled by the device volume buttons for common actions, and the system alert volume for alarms
• Tap or long tap the start button in the console of a finished Roast to quickly choose a Roast Degree
• New Brewed Weight field and auto-calculated Extraction Yield values are now included in the Cupping detail view and reports
• Low Inventory Report shows you which Beans need to be reordered based on their Inventory Warning value
• New auto-trigger enabled Event types for Development time and percentage, and Pyrolysis time and percentage
• Bug fixes
• Much, much more!


Data Logging

• Rewritten Data Logging engine, with sweeping improvements to reduce processing overhead and increase battery life
• Increased accuracy of Probe timing, Node capturing, Delta Curves and Projection Markers
• Control Curves now support Automatic Data Logging, just like Reading Curves
• Probes are now stored in the database, and travel with it
• Finalized, expanded RBP 2.0 Protocol for DIY probe hardware
• Support for Phidgets Wireless VINT Hub provides a cheaper alternative to SBC hosts
• Native support for the upcoming RoastLink Pro Bluetooth LE hardware

### 11.0.0 — 2017-10-21

iOS 11 support
Ability to hide master split view
Automatic Data Logging enhancements:
• Santoker Bluetooth LE roaster
• Phidgets Library 22 and VINT devices
• Phidgets RTD probes (VINT)
• RBP Bluetooth LE protocol for DIY hardware
Interface Enhancements
Bug fixes

IMPORTANT: Phidgets users MUST upgrade to Library 22 in order to use Roastmaster 11

### 10.1.0 — 2017-07-08

• ThermaQ® Blue probe support
• Custom roaster maintenance schedules
• UI Enhancements
• Bug Fixes

## Apps similar to Roastmaster

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [BeanBon Home Coffee Roaster](https://appshunter.io/ios/app/beanbon-home-coffee-roaster/id1529828970) | 4.0 (1) | Free | Food & Drink |
| [Coffee DTR Timer](https://appshunter.io/ios/app/coffee-dtr-timer/id6749510887) | — | Free | Food & Drink |
| [QUANTIFY CVA](https://appshunter.io/ios/app/quantify-cva/id6746708075) | — | Free | Food & Drink |
| [Dark Roast for Coffee Lovers](https://appshunter.io/ios/app/dark-roast-for-coffee-lovers/id6453024992) | 4.0 (1) | Free | Food & Drink |
| [Beanconqueror](https://appshunter.io/ios/app/beanconqueror/id1445297158) | 4.9 (138) | Free | Food & Drink |
| [Roast Manager](https://appshunter.io/ios/app/roast-manager/id6475163343) | — | Free | Food & Drink |

## Related topics

[roast coffee](https://appshunter.io/ios/topics/roast-coffee)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*
