xade roast vs CoffeeOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
xade roast
This app helps coffee enthusiasts measure and analyze coffee roasts with various modes. Utilize your iPhone's camera and specialized attachments to precisely measure roast levels, particle sizes, and more, aiding in the pursuit of the perfect roasting profile.
- Multiple measurement modes (Picker, Nano, Microscope, Particle, Cube, Card)
- iPhone camera integration for precise analysis
- Roast scale matching and custom roast management
- Particle size statistics
- Exportable measurement history (Pro Feature)
- AI-assisted mode changes
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xade roast provides different modes. All modes allow you to find a matching roast by first locating the roast using the xade roast scale. (see below regarding compatibility): Picker mode ------------ Pick a roast from the live stream and set the maching roast in the roast picker. Nano mode ----------- Attach xade nano to your iPhone camera and turn your iPhone into a precise roast measurement device. Access the measurement history of the last 90 days with the Pro Feature subscription and the history enabled. Run measurement batches and export your batch or history data as json. Microscope mode ------------------ Switch to microscope mode and select between different zoom factors (5x/10x/15x) and look into the details of your coffee. Recommendation: use xade nano for optimal lighting and sharp images with the hassle free fixed focus condition. Measure particles using the ruler grid. Particle mode ------------------ Switch to particle mode to get particle statistics of your ground coffee. Tip: Use a brush to dust the coffee on a white sheet of paper to get reliable results. Use xade nano for optimal lighting and focus point. Cube mode ----------- Place your iPhone on the xade cube and turn your iPhone into a precise roast measurement device. Card mode ----------- Use your own setup to measure the roast. The roast result is compared to our sample roast list or to beans and roasts created by you (Pro Features subscription). In conjunction with xade cube you can turn your iPhone into an extremely precise roast measurement device. Finding the perfect roasting profile for a specific taste needs experience. Being able to detect even slightest differences below human perception, is a helpful addition to your toolbox. Compatibility ========== Picker mode ------------- - all iPhones with iOS 18.0 or newer. Nano, microscope & particle mode: -------------------------- - iPhone 14 Pro - iPhone 14 Pro Max - iPhone 15 Pro - iPhone 15 Pro Max - iPhone 15 (nano required) - iPhone 15 Plus (nano required) - iPhone 16 - iPhone 16 Plus - iPhone 16 Pro - iPhone 16 Pro Max - iPhone 17 - iPhone 17 Pro - iPhone 17 Pro Max Cube & card mode: --------------------- - iPhone 12 Pro Max - iPhone 13 Mini - iPhone 13 - iPhone 13 Pro - iPhone 13 Pro Max - iPhone 14 - iPhone 14 Plus TECHNICAL SPECS AND CORE FEATURES ------------------------------------------- - STDEV on coffee between samples: ~0.3 on a [10, 100] scale.(1) - Continuous aperture ⌀ ~1-12mm / 0.2-4mm. (4) - D65 & D50, 2° observer.(2) - 45°/0° geometry. - Use your perception in picker mode to set the measured value. - AI assisted mode changes. - Display and export spectral data. Beta (2) - Manage your own roasts and locate your roast. (2) - Locate your roast with our standard roast list. - Visually see result in taken picture with extended sRGB.(3) 1 Determined with 18 samples of a roast degree of 45 with xade base for nano+ and motion measurement. 2 Available as Pro Feature subscription. D65/D50 and spectral graph are available when using xade card, xade cube or xade nano 3 Available in all supported iPhones. 4 xade cube / xade nano Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ iPhone and iOS are trademarks of Apple Inc.
CoffeeOS
This platform connects coffee growers, roasters, brewers, and enthusiasts. It offers tools for research, practice, and brewing, with AI-powered insights to refine coffee making. Collaborate and share with a global community.
- Connects coffee growers, roasters, and brewers
- AI-powered insights for perfecting coffee
- Tools for research, practice, and brewing
- Global community for collaboration and sharing
- Integrates with compatible coffee devices
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CoffeeOS brings coffee growers, roasters, brewers, and enthusiasts together onto one powerful platform designed to enhance every area of the coffee world, seamlessly integrating an ever growing number of compatible coffee devices. Whether you’re researching, practicing, or just brewing for fun, CoffeeOS offers intuitive Tools to experiment, collaborate, and share insights with a global community—all while leveraging AI to unlock smarter, ways to perfect your craft.
Screenshots
Verdict
The clearest difference is rating: xade roast at 5.0 against CoffeeOS's 3.4. CoffeeOS's advantage is in-app purchases (none vs 2) and ratings volume (7 vs 1). On price, update cadence and ads 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. xade roast sells 2 in-app purchases, starting at $0.99 per month. CoffeeOS asks for nothing beyond the download.
xade roast holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: CoffeeOS has 7 ratings behind it against 1, so its average is the more settled of the two.
xade roast ships an update fortnightly, CoffeeOS every 2 weeks. The most recent releases landed on June 5, 2026 and September 15, 2026 respectively.
| Parameter | xade roast | CoffeeOS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.4 (7 ratings) |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | 1 | 7 — better |
| Update frequency | Fortnightly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 63 MB | 112 MB |
| Age rating | 4+ | 4+ |
| Developer | eveloar GmbH | Shenzhen Digitizing Fluid Technology Co.,Ltd |
Customer experience
xade roast
CoffeeOS
In-app purchases
xade roast
- Pro Features monthly$0.991 Month
- Pro Features yearly$8.991 Year
CoffeeOS
No in-app purchases









