Everything you need to monitor, rate, and perfect your roast — in one app, for a fraction of the cost of the pro tools.
Not every roaster needs every feature. Home includes all three views — find the one that fits how you roast today, knowing you can switch any time without losing a thing.
“I roast by smell, sight, and sound. I want to enjoy it — not babysit an app.”
Why it’s different: Artisan and Cropster assume a probe and a wired rig. Craft is the only way to roast entirely by feel — and it’s already included.
“I know what I should do. I want to get better at knowing how to do it.”
Why it’s different: this is the guided roadmap Artisan Plus charges a yearly subscription for — here it’s the same one-time price.
“I want every data point, my own recipes, and a profile that reacts to what’s actually happening in the roaster.”
Why it’s different: the depth roasters reach for Cropster to get — without the monthly bill or the required account.
All three views ship with Home — $19.99, one time. Switch between them whenever you like; your beans, roasts and ratings carry across every mode.
Craft is the oldest way to roast: you read the beans, not a screen. You follow the color, the smell, and the sound of first (and second) crack, trusting your senses to tell you where the roast is. RoastSource stays out of the way — it hands you a starting recipe for your machine, a few simple live cues, and it remembers exactly what you did, so a roast you loved is one you can repeat. No probe, no wiring, no forms mid-roast.
You know the milestones — now you want the map between them. Journey adds a guided Adaptive Roast that proposes a heat & fan plan for the flavor and roast level you’re after, predicted cup scores so you’re never starting from a blank page, and plain-language coaching on what each number actually means. You can still keep it simple with Quick Roast; the difference is every batch now teaches you something you can reuse.
You treat every batch as an experiment. Science puts every metric on screen, live, and lets you run your own recipe prompt-by-prompt or a fully adaptive profile that reacts to what’s happening in the roaster. It watches Rate of Rise and phase timing and flags drift before it costs you a cup — and it accounts for the things that quietly change a roast: bean type & processing, and your environment (room temperature, humidity, and gas vs. electric power).
Everything in Home, plus the depth serious and professional roasters ask for — component-level roast analysis, live multi-probe logging, cross-roast analytics, native iOS & desktop apps, and multi-device cloud sync. In active development; most of it is already built and in testing.
Score cups on the current Coffee Value Assessment: descriptive (intensity + CATA) and affective (9-point liking) — the standard that replaced the 2004 form.
Record scores from several cuppers on the same coffee with automatic averaging and variance — built on the blind-cupping mode already in Home.
Beyond the headline score: component sub-scores (development, DTR, drying, evenness…), what to fix, and drift trends over time.
Patterns across your whole roast history — what keeps causing baked, scorched, or grassy cups, and how to correct them.
Overlay roasts on shared milestones with smoothed Rate of Rise and phase-by-phase analysis.
Your scores trended by roast level, processing, and origin — see what's working and where to focus next.
Log green moisture % and density (g/L) and track green age — the inputs behind repeatable, origin-aware roasts.
Home import (Artisan, RoasTime, Cropster & CSV) is coming soon. Expert adds more formats (IKAWA, Kaffelogic, Sandbox, Roest), auto-matching each imported roast to your green inventory, quality & defect analysis on imported curves, regional / processing analytics across your whole library, and continuous auto-import from your roaster’s software.
Cost out blends by component and batch — cost per pound and margins before you roast.
Beyond the Mastech probe in Home: USB / Bluetooth / WiFi probe support (in testing), multi-sensor logging & auto-association, and unlimited roaster profiles (Home supports one roaster).
RoastSource as an installed app: iPhone & iPad, plus a Windows / macOS / Linux desktop build (Tauri). Same roasts, same data, native performance — the browser app stays available too.
Your roasts on phone, tablet & desktop, always in step. Because sync ties your data to you, Expert uses a free RoastSource account (user ID) — Home stays fully offline and account-free.
Most Expert tools are already built and in testing; cloud sync is the piece still in development. Pricing is TBD — Home owners get first access. A Commercial tier (production planning, lot traceability, batch-consistency grading & team access) builds on Expert — in development with working roasteries.
Grouped by RoastSource module, in the order they appear in the app. The shaded green heading row shows whether each tool has that module at all; the rows beneath compare the functionality within it.
| Feature | RoastSource Home |
Artisan | Artisan Plus | Cropster |
|---|---|---|---|---|
| Price | $19.99 one-time | Free | €49–670/yr | $80–1,000+/mo |
| Inventory — green stock & freshness | ✔︎ | ✘ | ✔︎ | ✔︎ |
| Green-bean inventory + freshness (what to roast next) | ✔︎ | ✘ | ✔︎ | ✔︎ |
| Vendor directory + auto-detect on import | ✔︎ | ✘ | ✘ | ◐ |
| Unlimited green-bean entries in inventory | ✔︎ | ✘ | ✔︎ | ✔︎ |
| Roasting — guided roast on any machine | ✔︎ | ✔︎ | ✔︎ | ✔︎ |
| Works with ANY roaster | ✔︎ | ✔︎ | ✔︎ | ✔︎ |
| Quick Roast — tap first crack & done, no forms mid-roast | ✔︎ | ✘ | ✘ | ✘ |
| ↳ Roaster-specific recipe (time · temp · dose) for any machine | ✔︎ | ✘ | ✘ | ✘ |
| ↳ Or start from your own saved favorite — matched to the bean & processing style | ✔︎ | ✘ | ✘ | ✘ |
| ↳ Roast by sight, smell & sound — no probe required | ✔︎ | ✘ | ✘ | ✘ |
| ↳ Weight-loss & roast-level targets with live cues | ✔︎ | ✘ | ✘ | ◐ |
| Adaptive Roast — pick a roast flavor profile & level | ✔︎ | ✘ | ✘ | ◐ |
| ↳ Builds a heat & fan plan for your roaster’s controls | ✔︎ | ✘ | ✘ | ◐ |
| ↳ Start from a prior roast or a favorite | ✔︎ | ◐ | ◐ | ◐ |
| ↳ Real-time feedback — compares your live curve to the target and tells you to nudge heat / fan when the roast drifts | ✔︎ | ✘ | ✘ | ✘ |
| ↳ Flags stalls, crashes & flicks as they happen — not after the roast | ✔︎ | ✘ | ✘ | ✘ |
| ↳ Bean-type & processing-aware targets (Gesha, Pacamara, naturals…) | ✔︎ | ✘ | ✘ | ✘ |
| ↳ Environmental & power-aware adjustments (room temp, humidity, gas / electric) | ✔︎ | ✘ | ✘ | ✘ |
| ↳ Development-time-ratio (DTR) & drop-timing targets | ✔︎ | ✘ | ✘ | ◐ |
| Manual temperature entry — any external meter | ✔︎ | ✔︎ | ✔︎ | ✔︎ |
| Mastech probe logging + Rate of Rise | ✔︎ | ✔︎ | ✔︎ | ✔︎ |
| Import roast profiles — Artisan, RoasTime, Cropster & CSV · coming soon | Soon | ◐ | ◐ | ◐ |
| Roast history, edit / delete & side-by-side compare | ✔︎ | ◐ | ◐ | ✔︎ |
| Unlimited roast logs & history | ✔︎ | ✔︎ | ✔︎ | ✔︎ |
| Reuse past roasts as starting points | ✔︎ | ◐ | ◐ | ✔︎ |
| Blending — recipes, ratios & blend ideas | ✔︎ | ✘ | ✔︎ | ✔︎ |
| Blend recipe builder with automatic ratio calculation | ✔︎ | ✘ | ◐ | ✔︎ |
| Build a blend from beans in your own stock | ✔︎ | ✘ | ✘ | ✘ |
| Taste & personality-matched blend suggestions | ✔︎ | ✘ | ✘ | ✘ |
| Preset & world blends (espresso, cold brew, classic regional) | ✔︎ | ✘ | ✘ | ✘ |
| Blend ideas built from your recent roasts | ✔︎ | ✘ | ✘ | ✘ |
| Ratings & Cupping — roast quality & scoring | ✔︎ | ◐ | ◐ | ✔︎ |
| Roast Quality Score & Calculator — auto-grades your roast | ✔︎ | ✘ | ✘ | ✘ |
| Predicted cup scores | ✔︎ | ✘ | ✘ | ✘ |
| Plain-language defect guidance | ✔︎ | ✘ | ✘ | ◐ |
| Roaster-type weight-loss reference | ✔︎ | ✘ | ✘ | ◐ |
| SCA 100-point cupping — full score sheet | ✔︎ | ◐ | ◐ | ✔︎ |
| Flavor wheel & spider-chart visualizations | ✔︎ | ◐ | ◐ | ◐ |
| Brewing — method guides & calculators | ✔︎ | ✘ | ✘ | ✘ |
| Brew-method guides (espresso, pour-over, French press, cold brew, AeroPress…) | ✔︎ | ✘ | ✘ | ✘ |
| Brew ratio & dose calculators | ✔︎ | ✘ | ✘ | ✘ |
| Grind, water-temp & extraction guidance | ✔︎ | ✘ | ✘ | ✘ |
| Dial-in troubleshooting by taste | ✔︎ | ✘ | ✘ | ✘ |
| Roasting Equipment — equipment advisor | ✔︎ | ✘ | ✘ | ✘ |
| Equipment advisor — find the right roaster for your budget & style | ✔︎ | ✘ | ✘ | ✘ |
| Roaster deep-dives & tier comparisons | ✔︎ | ✘ | ✘ | ✘ |
| Coffee Expert — Java Geek education | ✔︎ | ✘ | ✘ | ✘ |
| Interactive world origin map with region zoom | ✔︎ | ✘ | ✘ | ✘ |
| 49 producing countries — regions, altitude & harvest windows | ✔︎ | ✘ | ✘ | ✘ |
| Processing methods explained (washed, natural, honey, anaerobic…) | ✔︎ | ✘ | ✘ | ✘ |
| Varieties & cultivars reference | ✔︎ | ✘ | ✘ | ✘ |
| Grading systems & the coffee science behind the cup | ✔︎ | ✘ | ✘ | ✘ |
| The app itself — platform & access | ✔︎ | — | — | — |
| Formatted print & export | ✔︎ | ◐ | ✔︎ | ✔︎ |
| Works offline · data on your device | ✔︎ | ✔︎ | ◐ | ◐ |
| No account required | ✔︎ | ✔︎ | ✘ | ✘ |
| Beginner setup | None | Med–High | Medium | High |
✔︎ included · ◐ limited / partial · ✘ not available. Competitor details researched from each tool's docs (Jun 2026).
No installation. No account. Just open and start roasting.
Start free for 30 days. Pay once. All future Home updates included — forever.
No credit card required · Full access for 30 days
Home is everything most roasters need today. Expert adds deeper analysis now, with cloud sync across your devices and live probe data on the way. Your Home purchase always carries over — and Commercial tools for roasteries are coming too. Expert pricing will be announced when it's ready.
Home is $19.99 one-time. Expert pricing will be announced when it's ready; your Home purchase always carries over. Commercial tools for roasteries are on the way — reach out and help shape them.
Home is everything most roasters need. As new tiers arrive, you'll be able to upgrade without losing a single roast, rating, or blend — everything moves with you.