GrindLab vs DOSE

GrindLab turns your iPhone camera into a precision coffee grind analyzer. Snap a photo of your grounds and get instant, micron-level particle size measurements — no extra hardware needed. ANALYZE YOUR GRIND Use computer vision to detect individual particles and measure their size distribution. GrindLab calculates median size, uniformity score, fines percentage, and boulders percentage so you know exactly how consistent your grinder is performing. Calibrate with a coin or ruler for real-world micron accuracy. FOUR GRIND PROFILES Dial in for any brew method with built-in target ranges: - Espresso: 170-300μm - Filter/Pour-Over: 400-800μm - French Press: 750-1000μm - Cold Brew: 800-1200μm TASTE-TO-GRIND RECOMMENDATIONS Log how your coffee tastes — sour, bitter, balanced, weak — and GrindLab connects your flavor feedback to your grind data. BREW TIMER & RECIPES Time your brews with step-by-step guidance for V60, Espresso, French Press, and Chemex. Create custom recipes with your own ratios, steps, and notes. Live Activities put your timer on the Lock Screen and Dynamic Island so you never miss a pour. BREW JOURNAL Track every cup. Log your beans (roaster, origin, roast level, freshness), brew parameters (dose, yield, temperature, time), and tasting notes with star ratings. Search and filter your history to spot trends and refine your process over time. COMPARE & IMPROVE Save analyses and compare them side by side. Overlay distribution charts, view delta metrics, and set a baseline to track how grinder adjustments affect consistency. See your stats at a glance: total analyses, percentage in target range, and weekly trends. DETAILED VISUALIZATIONS Color-coded particle overlays show exactly where fines and boulders live in your sample. Distribution charts, histograms, and pie charts make your data easy to understand and share. PRIVACY FIRST GrindLab processes everything on-device. Your photos and data stay on your iPhone. No account required. No tracking. Whether you're a home barista chasing the perfect espresso or a pour-over enthusiast dialing in a new bag, GrindLab gives you the data to brew better coffee every day.

DOSE analyzes your coffee grind size from a single photo. Even a kitchen towel or napkin works perfectly. Measure your grind at home or at the café in seconds. ■ Measuring is simple • Spread the grounds Scatter your ground coffee evenly over a sheet of paper, a napkin, or a kitchen towel. • Find good light Natural light or bright indoor lighting is all you need. Just avoid harsh shadows. • Set distance and angle Follow the on-screen guide: hold the camera about 18–24 cm away and parallel to the surface. • Capture Center the grounds in the frame and take one shot. That's it. ■ What you'll learn • Particle distribution See D10 (small) · D50 (median) · D90 (large), mean, fines ratio, uniformity, and more — alongside a distribution histogram. • Brew-method guidance Get advice on grinding finer or coarser for espresso, pour-over, French press, and other methods. • AI Barista insights (on supported devices, iOS 26+) Reads your results and suggests how to dial in your next cup. • Save and share Save your analysis card as an image and share it. ■ What's coming • Compare your history Line up your saved measurements to track how grind size shifts with each grinder setting — and how consistent it stays. ■ Made for • Home brewers who want more consistent extractions • Anyone dialing in a new grinder by the numbers • People who want to tell espresso and filter grinds apart precisely • Baristas who want to check grind uniformity and fines firsthand Taste the difference in every cup — backed by data.