This app helps you achieve perfect coffee extraction by measuring TDS and calculating extraction values. It supports various brewing methods and provides precise readings for home baristas and professionals.
6.6.2
July 2, 2026
- Added new precise measurement mode - Improved device settings and diagnostics - Improved Measure Insights and reports To improve our app for you, we regularly bring updates to the App Store. If you enjoy it, would you mind taking a moment to write a review on the App Store? We’d greatly appreciate it.
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Coffee Meister is a tool that connects to your refractometer via Bluetooth to measure the TDS of your coffee and calculate its extraction value, helping you brew better coffee.
Coffee Meister supports percolation brewing (espresso, V60, Chemex), immersion brewing (cupping, French press), and mixed phase brewing (Aeropress, siphon).
Yes, for density measurements, you will need an EasyDens by Anton Paar. For refractive index readings, a SmartRef by Anton Paar is required.
Coffee Meister reports results in %TDS, custom %TDS, density (g/cm³), refractive index, Brix (°Bx), and temperature in °C or °F.
The concentration values shown on your phone are already temperature-corrected, so you do not need further calculations or correction tables.
Coffee Meister offers a Full Access Monthly subscription for $5.99 with a 7-day free trial, and a Full Access Yearly subscription for $39.99, also with a 7-day free trial.
You can cancel your subscription or free trial at any time by turning off auto-renewal through your iTunes account settings at least 24 hours before the end of the current period to avoid charges.
Yes, Coffee Meister is designed for both home baristas and coffee professionals, empowering anyone to craft consistently exceptional coffee by removing guesswork.
