Our Meister apps turn every measurement into a clear, repeatable workflow – for brewers, winemakers, distillers, baristas, reef keepers, pet owners, and labs. Add readings manually or connect your EasyDens, SmartRef, pH2Go or other compatible devices. Free for iOS, Android, Mac, Apple Watch, and Web.
One Ecosystem. Seven Specialized Apps.
Each Meister app is built for a specific craft – but they all share the same powerful core:
- Bluetooth® connection
- Automatic temperature compensation
- Multiple measurement units & built-in conversions
- Custom batches & logs
- Measurement history with notes & timestamps
- Cloud sync
- PDF/CSV export

The App That Turns Results Into Next Steps.
Taking the measurement is only the beginning. Understanding what it means – that’s where the Meister apps come in. Every Meister app turns a reading into clear context and next steps:
- Pick your product. The app picks the right range.
- Tag the moment. (“Mashing”, “Final Gravity”, “Bottling”, etc.) and get guidance that matches the task.
- See what’s normal — fast. The app compares your reading against recommended ranges for what you’re making.
Examples of In-Context Guidance:

Get next-step guidance
If your mash comes in at pH 5.9, Brew Meister flags it and suggests actions like adding lactic acid to bring it back into range. Same idea for drifting wine fermentations, under-extracted espresso, or reef trends moving the wrong way.
Skip the math
Temperature compensation runs automatically in the background. SmartRef wort and alcohol correction are built in. Specific gravity is shown at your preferred reference (20/20, 15/15, 20/4). ABV and attenuation are calculated automatically from OG and FG.
Choose Quick, Continuous, or Precise measurement modes depending on whether you need speed, a live reading, or maximum accuracy.
Built for More Than Beverages.
Same “in-context” guidance – across everything else you measure:
Saltwater Aquariums
Choose your tank type and Reef Meister checks the right ranges (e.g., 33 - 35 ppt for reef/coral tanks) with pH guidance for stable coral growth.
Pet Health
Track urine specific gravity ranges for cats, dogs, and large mammals to catch dehydration or kidney issues early.
Honey & Beekeeping
Verify water content and natural acidity before bottling for shelf stability.
Industrial Fluids
Glycol concentration for freeze protection, oil/water balance in cutting fluids, brines, syrups up to 84 °Brix.
Lab & Water
Hydroponics, wastewater, drinking water, dairy QC, glucose/fructose solutions – keep every measurement and range in one place.
A Data History You Actually Own.
Measurements stay organized in the containers you choose – batches, logs, tanks. Name them, tag them, add notes, and keep the story.

✓ Built-in calculators that replace third-party tools
- Brew Meister: alcohol from OG/FG, SRM/EBC, Plato/SG, wort-corrected refractometer readings
- Wine Meister: residual sugar combining density + total acidity, Brix-Acid correction
- Coffee Meister: extraction yield
✓ Notes, your way
- Timestamped batch journal (what happened as you went)
- Per-reading notes (what you saw in the moment)
- Project notes (recipes, prep, constants you always want handy)
✓ Custom value types
Tag readings with predefined types – or create your own (pressure, dissolved oxygen, etc.) alongside device readings.
✓ Find anything instantly with full-text search
✓ Export to PDF or CSV
PDF for clean reports. CSV for spreadsheets and deeper analysis.

Wireless Fermentation Tracking.
Brew Meister and Wine Meister integrate directly with Tilt Hydrometer, RAPT Pill, and iSpindel – three of the most popular wireless fermentation trackers.
- Live gravity and temperature curves inside every batch
- Alerts when temperature drifts or your target gravity is reached
- Wireless data and manual readings in the same timeline
- Compare current batches to past results to spot what changed
Install the One That Matches What You Make.
All seven apps are free to download. One Meister Cloud account unlocks cloud sync across all of them.
Brew Meister
For beer, kombucha and hard seltzer. Track fermentation in real time, compare batches across the season, and hit your target gravity.
Wine Meister
For wine, cider, mead, and sake. Track must and ABV through fermentation, calculate residual sugar from density and acidity, and map vineyard parcels with GPS.
Proof Meister
For spirits and liqueurs. Measure ABV in %v/v, %w/w, Proof US, or Proof UK. Choose your style (gin, vodka, whisky, grappa) and see whether your reading lands in the expected range.
Coffee Meister
For coffee TDS and extraction yield. Measure strength, calculate extraction, and dial in espresso, pour-over, and immersion brews — with built-in TDS targets per brew method.
Reef Meister
For saltwater aquariums. Track salinity in PSU, ppt, or specific gravity. Select your tank type and the app shows whether you're in the healthy range.
Pet Care Meister
For cats, dogs, and large-mammals urine analysis. Track urine specific gravity over time, spot early warning signs, and use built-in recommended ranges for cats and dogs.
Lab Meister
For honey, industrial fluids (like cutting oils and glycols), dairy and general lab work. Refractive index, water in honey, glycol concentration, freezing points, density – the flexible one.
FAQs
Are the apps free?
Yes. All seven Meister apps are free to download on iOS and Android. An optional subscription unlocks additional functionality.
Can I use the Meister apps without a Tony device?
Yes. You can use Meister apps without any device. You can add readings manually, organize, and export data. When you’re ready, you can connect via Bluetooth to EasyDens, SmartRef, and pH2Go, plus third-party fermentation trackers like Tilt, RAPT Pill, and iSpindel.
Do the Meister Apps work with Tilt, RAPT Pill, or iSpindel?
Yes. Brew Meister and Wine Meister connect directly to all three for real-time fermentation tracking, gravity and temperature alerts, and notifications.
Can I export my data?
Yes. Export every reading to PDF (formatted reports) or CSV (raw data for spreadsheets). Long-press any reading to copy or share instantly.
Which platforms are supported?
iPhone, iPad, Apple Watch, Apple Silicon Mac, Apple Vision Pro, and Android (6.0+). The web app runs in any modern browser.
Which app should I install?
Install the ones that match what you make. Most users run two or three at the same time—one Meister Cloud account keeps everything organized.
Is my data backed up automatically?
With a Meister Cloud subscription, your batches, logs, and tanks sync automatically across every device you sign in to - phone, tablet, or web. Without a subscription, your data stays local on your device. Either way, you can export to PDF or CSV anytime.



