Brew Science: Coffee Toolkit
Brew math, grinders, tasting
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Pick a method and brew; scan a bean bag to log it. Grinder conversion, tasting cards, freshness widgets. Works on iPhone Duo. No account, no ads.
Brew Science puts the tools for grinding, brewing and tasting in one app. No account, no ads; the core tools work without a network connection.
◆ Brew a Cup
Pick pour-over, French press, AeroPress or espresso, choose a recipe, then weigh, pour and time it step by step. After the cup, say what's off and get a fix for the next one.
◆ Scan a bean bag, log it automatically
Point the camera at a bag: roaster, origin, process, variety, altitude and flavor notes fill themselves in. Recognition runs entirely on-device; photos are never uploaded. Paper tasting cards from cafés scan straight into a tasting card too.
◆ Brew Calculator
Ratio and water planning, a brewing control chart, and extraction yield for cold-brew concentrate.
◆ Espresso Dial-in
Yield and a typical time window from your dose and ratio, with symptom-based fixes for over- and under-extraction. Includes attributed CORE long-extraction protocols; save your own versions.
◆ Grinder Match
Pick two grinders; change either side and the other converts automatically (micron-interval based). 8 popular grinders free; Pro unlocks all 121.
◆ Curated Recipes & Staged Timers
Staged pour timers that pour with you — progress lives in the Dynamic Island and on the Lock Screen. Save your own recipes too.
◆ Water Lab
Four target water profiles plus your own recipes, with GH/KH conversion; mineral data for 135 bottled waters.
◆ Grind Size Reference & Photo Measurement
Photo-based D10/D50/D90 measurement against a calibration object, with the full distribution curve.
◆ Bean Cellar & Resting
Log each bag's roast info; resting and peak-flavor windows are estimated automatically. You can also set your own dates. Archive a bag when it's finished and search it any time. Widgets show which bag to drink today and how many days it has left, on the Home Screen, the Lock Screen and full screen on iOS 27 (Pro).
◆ Tasting Cards
Pick flavors on the wheel and the card is made: 8 styles, optional cupping scores, a bag's details in one tap. Save to Photos or share.
◆ Brew Rescue
Something off with this cup? Pick a symptom, get a diagnosis path.
◆ Roast Reference
Eight SCA roast levels (Agtron) with their crack stage, flavor and surface oil.
Brew Science Pro (yearly or Lifetime):
· Full grinder library: all 121 grinders converted both ways
· iCloud sync: iPhone and iPad stay in sync; restore instantly on a new device
· Freshness reminders & widgets: local notifications when resting ends or peak flavor is closing; Home Screen, Lock Screen and iOS 27 full-screen widgets
· Particle Lab: sieve-based fines measurement + photo shape analysis
· Exclusive gold app icon
· All tasting card styles: 8 card designs (2 are free)
Premium features added later are included while subscribed, or for good with Lifetime. Yearly renews automatically; cancel anytime in system settings. Lifetime is a one-time purchase.
The free tier permanently includes every brew/espresso calculator, bean-bag scanning, curated recipes and timers, water and roast references, 8 popular grinder conversions, tasting cards (2 styles), bean archive, and unlimited beans and custom recipes. Free is not a trial.
Privacy: we collect no data. No analytics, no ad SDKs. Photo recognition runs on-device.
Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy policy: https://brewscience.win/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New: Lifetime, a one-time purchase that unlocks Pro for good.
Cleaner screens: page notes moved behind the ⓘ button, and the Pro page shows only features and prices.
Shorter, plainer copy.
Fixed a double plus sign on the Recipes button.
The developer, Nexbit Pty LTd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Nexbit Pty Ltd
- Size
- 5.3 MB
- Category
- Food & Drink
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English and Simplified Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Brew Science Pro $9.99
- Brew Science Pro Lifetime $19.99
- Copyright
- © 2026 Nexbit Pty Ltd