Journeyman Voice Calcs
Trade Math, Hands Free
Speak your trade math question. Get a tape-measure-ready answer in fractions.
Get notified when Journeyman Voice Calcs launches
The Problem
Sound familiar?
Existing calculator apps require typing on button grids with dirty hands, output decimals instead of fractions, and don't understand trade terminology
“I'm tired of converting decimals to fractions in my head on the job site”
“Calculator apps don't understand trade terms — I have to translate my question into button presses”
“I need an answer while my hands are full of lumber or covered in concrete”
“Construction Master costs $40/year now for what used to be a $20 one-time purchase”
When it matters most
On the job site — hands full, eyes on work, need a fast answer in tape-measure-ready fractions
What You Get
Features
Everything included to help you get the most out of the app.
Voice-first input
speak your question naturally, get an answer in 3 seconds
155 trade formulas across 18 categories: framing, concrete, roofing, tile, electrical, plumbing, masonry, cabinetry, carpet, painting, and more
Tape-measure-ready fraction output (1-3/4" not 1.75")
Show the Math
expandable step-by-step formula breakdown for every calculation
STT error recovery
understands trade jargon even when speech-to-text mangles it
Paper tape history
adding-machine style calculation log
Formula guide
searchable browser with example voice queries for all 155 formulas
Lock screen and home screen widgets for quick access
1/32" and 1/64" fraction precision
Unlimited calculation history
Voice customization (gender, speed)
Premium widget features
Why Journeyman Voice Calcs
What makes it different
Built with purpose, not feature creep.
Voice-first
the only construction calculator you can use with dirty hands. Speak your question, don't tap tiny buttons.
Fraction-formatted output
every answer comes in tape-measure-ready fractions, not decimals you have to convert in your head.
155 trade-specific formulas
not a generic calculator with a construction skin. Built for the actual math tradespeople do daily.
Show the Math
tap any answer to see the step-by-step formula breakdown. Learn the math, don't just get numbers.
Privacy-first
all processing on-device. No accounts, no cloud, no analytics. Your phone is a tool, not a tracker.
Getting Started
How It Works
Simple by design — here's the flow.
Open app — one-time safety disclaimer ('estimates for planning, always verify on site')
Tap mic — speak naturally: 'How many studs for a 20 foot wall?'
Answer appears in large fractions (16 studs) with TTS readback
Tap 'Show the Math' to see step-by-step formula breakdown
Paper tape history builds below — tap any to re-expand
Formula guide available for browsing all 155 formulas by trade
Explore More
More from Tree City Design
Simple tools built to do one thing well.
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