Comparison

RoastSignal vs Kaava

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

RoastSignal

Features
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RoastSignal helps home coffee roasters track roast sessions, record roast milestones, save roast history, and receive AI-assisted roast feedback. The app does not require an account or login. Core workflow: 1. Configure a roast setup or Quick Start Preset 2. Start a roast timer 3. Record roast milestones 4. Review AI analysis 5. Save roast history 6. Export or share roast results Camera and photo access are optional and used only when the user chooses to analyze bean or roast photos. The Coffee Expert feature requires an internet connection.

About

Kaava

Features
Read full description

You nailed a roast. The beans smelled incredible, the cup was balanced, everyone wanted more β€” and six weeks later you have no idea what you actually did. Kaava closes that loop. ROAST TIMER Time every session with an event-driven timer. Log First Crack, Second Crack, and Drop in real time with temperature and weight at each event. Every second of the roast is captured automatically. ROAST JOURNAL Every session is saved the moment it ends: duration, temperatures, weight loss, notes, and photos. Scroll back through months of roasts and find the one you want to repeat β€” then repeat it exactly. BEAN PANTRY Track your green coffee inventory by origin, supplier, processing method, and altitude. Always know what you have, where it came from, and which roasts used it. CUPPING RECORDS Capture structured tasting notes with an interactive 9-axis flavor wheel: Fruity, Floral, Sweet, Sour, Roasted, Nutty, Spice, Vegetal, Body. Link each cupping directly to the roast that produced it. EQUIPMENT Organize multiple roasting machines and brew devices. Switch between them in one tap at the start of each session. SHARE YOUR BEST WORK Every roast and cupping session generates a shareable card β€” your timer events, flavor profile, and photos in a single image. Share to Instagram, WhatsApp, or anywhere else. Everything is stored on your device. No account. No subscription. No cloud required. Your records are yours. Free to download and use.

Screenshots

RoastSignal4 screens
Kaava4 screens

Verdict

The call

RoastSignal and Kaava are too close to call on the numbers: across 5 compared parameters β€” price, ads, in-app purchases and device support among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
RoastSignal versus Kaava: the parameters behind the verdict, then further details
ParameterRoastSignalKaava
PriceFreeFree
Update frequencyEvery 10 daysβ€”
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.1
Further details β€” not scored
Size26 MB53 MB
Age rating4+4+
DeveloperAnkur AgarwalTony Gaitatzis

In-app purchases

None

RoastSignal

No in-app purchases

None

Kaava

No in-app purchases

Questions

Is RoastSignal free?
RoastSignal is free to download, with no in-app purchases.
Is Kaava free?
Kaava is free to download, with no in-app purchases.
Do RoastSignal or Kaava have ads?
Neither RoastSignal nor Kaava shows ads.

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