Coffee DTR Timer vs RoastSignal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Coffee DTR Timer
This app helps coffee roasters time their roasts accurately. It allows users to input roaster, bean, and weight details, then track key stages like yellowing and first crack. The timer calculates development time, weight loss, and provides a roast summary for logging.
- Roast stage timing (Yellowing, First Crack, Drop)
- Live Development Time (DTR) calculation
- Weight loss calculation
- Roast history logging
- Favorite and delete roasts
- Custom roaster and bean input
Read full descriptionHide full description
This simple coffee roast timer is used with your roaster of choice. Add your roaster name, bean name and green weight with units on the setup screen. On the timer screen hit start when you start your roast. Tap the Yellowing button when the beans start to turn yellow and the drying phase time is saved. Tap First Crack at the sound of first crack and the Maillard phase time is saved and live DTR is enabled allowing to dial in development time! Tap Drop/End and the development time along with DTR, maillard time, time to first crack and total roast time are shown to allow you to log your roast information. Add roasted weight and weight loss is calculated. Save roast will add to roast history and display the roast summary screen. On the history screen the user can favorite or delete roasts from the history.
RoastSignal
Read full descriptionHide full description
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.
Screenshots
Verdict
The clearest difference is iOS requirement: RoastSignal at 15.1 against Coffee DTR Timer's 18.5. On price, update cadence, ads and in-app purchases 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.
Coffee DTR Timer ships an update every 9 days, RoastSignal every 10 days. The most recent releases landed on September 11, 2026 and September 15, 2026 respectively.
| Parameter | Coffee DTR Timer | RoastSignal |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 9 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.5 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Mike Whaley | Ankur Agarwal |
In-app purchases
Coffee DTR Timer
No in-app purchases
RoastSignal
No in-app purchases
