Coffee DTR Timer vs Crisp Guide
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
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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.
Crisp Guide
This app helps you store fresh food correctly, track its freshness, and get recipe ideas based on what you have. It prevents food waste by reminding you what to use first.
- Food storage guidance library
- Grocery haul tracking
- Freshness estimation
- Usage reminders
- AI-powered recipe generation
- Grocery photo import
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Most of us don't actually know the right way to store fresh food. An apple next to bananas, tomatoes in the fridge, bread left out too long. Small mistakes that add up. Crisp Guide makes it simple: know where everything goes, how long it keeps, and when to use it. Just add your grocery haul, and Crisp Guide remembers what you bought, shows what needs using first based on freshness, and crafts cooking ideas from what's actually in your kitchen. START FREE — NO ACCOUNT NEEDED • Browse the guide: full access to our complete fresh-foods storage guidance library • Save your grocery hauls: kept right on your device, so you always know what you have and where it goes • Freshness: see how fresh your groceries are and an estimate of how long they have left • Reminders: get nudged when foods need using soon so nothing gets forgotten CRISP GUIDE BASIC — Free account • Back up & sync: create a free account to keep your hauls safe and access them across your devices CRISP GUIDE PRO — $3.99/month • Add your grocery haul with a photo: Just snap a pic of your groceries or receipt to quickly sort and store your haul • Turn your groceries into recipes: Create custom cooking ideas from what's already in your kitchen, using AI • Share your kitchen: Share all of your grocery hauls with a partner or roommate, no Pro required on their end. • 1 MONTH FREE TRIAL: For all new subscribers Crisp Guide Pro is an auto-renewing subscription billed monthly at $3.99/month, with a 1-month free trial for new subscribers. Payment will be charged to your Apple ID account at confirmation of purchase, after the trial ends. Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings. Privacy Policy: https://crispguide.notion.site/privacy-policy Terms of Use (EULA): https://crispguide.notion.site/terms-of-service
Screenshots
Verdict
The clearest difference is monetization model: Coffee DTR Timer at free against Crisp Guide's freemium. Crisp Guide's advantage is iOS requirement (15.1 vs 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, Crisp Guide every 8 days. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.
| Parameter | Coffee DTR Timer | Crisp Guide |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | — | 3 — better |
| Update frequency | Every 9 days | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.5 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 72 MB |
| Age rating | 4+ | 12+ |
| Developer | Mike Whaley | Dead Earth Design |
Customer experience
Coffee DTR Timer
Crisp Guide
In-app purchases
Coffee DTR Timer
No in-app purchases
Crisp Guide
No in-app purchases









