Every HVAC tool you need, in one app.
AI that reads data plates, writes your service reports, and answers questions out loud — plus offline wiring diagrams, P/T charts, and calculators. Built by a real tech who works in the field.
What it does for you on the job.
Less time fighting paperwork and lookups. More time fixing equipment and looking sharp in front of the customer.
Save time on every call
Decode a nameplate or pull up a P/T chart in seconds instead of digging through manuals.
Look professional
Hand customers a clean, AI-polished service report — exported as a PDF on the spot.
Works on the rooftop
Wiring, refrigerant data, and calculators are stored on-device and run with zero signal.
Hands-free answers
Gloves on and hands full? Ask out loud and get spoken, step-by-step guidance.
AI that actually works in the field.
Not a gimmick bolted on — three tools that solve real problems when your hands are dirty and you need an answer now.
Snap the data plate. Get the answers.
Stop squinting at faded, greasy nameplates. Photograph any unit and AI instantly reads the serial and model — returning brand, equipment type, manufacture age, tonnage, efficiency, and refrigerant, perfectly formatted.
- Reads faded, scratched, or angled plates
- Instant unit age & tonnage from the serial
- Confidence rating on every result
Rough field notes in. Clean report out.
Jot down what you did in shorthand, tap Polish, and AI turns it into a professional, customer-ready summary with work performed, findings, and recommendations. Export to PDF and share before you leave the driveway.
- Turns shorthand into polished prose
- Findings & recommendations sections
- One-tap PDF export and share
Ask out loud. It answers — and navigates.
A hands-free assistant for troubleshooting and quick facts. Ask a diagnostic question and hear a step-by-step answer, or say 'open the superheat calculator' and it jumps you straight there inside the app.
- Spoken, step-by-step troubleshooting
- Voice navigation to any tool
- Great when your hands are full
The whole reference library, offline.
Everything you used to keep in a binder or Google on a slow signal — built in and ready with no internet.
Thermostat Wiring
Color-coded wiring scenarios for 2 to 8-wire setups across major brands. Stop second-guessing your control wiring.
Refrigerant P/T Data
Pressure–temperature charts and properties for 40+ refrigerants, including GWP and safety data.
Superheat & Subcool
Field calculators for superheat and subcooling so you can verify the charge without the guesswork.
Duct Sizing
A field ductulator — enter airflow and a friction rate or velocity to get round duct size, air velocity, and a rectangular equivalent.
Equipment Guides
Deep reference for condensers, air handlers, mini-splits, and refrigeration — specs and troubleshooting in one place.
Maintenance Checklists
Walk through cooling, heating, heat-pump, and mini-split maintenance without missing a step.
HVAC Glossary
Plain-English definitions for the terms and acronyms you run into — handy for apprentices and quick refreshers.
100% Offline Core
Every reference tool lives on your phone. Mechanical rooms, rooftops, dead zones — it all just works.
Simple, fair pricing.
The full reference toolkit is free, forever. Go Pro for unlimited AI when you're ready.
Free
Everything a tech needs to get started.
- All offline reference tools
- Wiring, P/T charts & calculators
- Equipment guides & glossary
- A few free AI tries each month
Pro
Unlimited AI for the working tech.
or $39.99/year — save 44%
- Unlimited AI nameplate decoding
- Unlimited AI service reports + PDF export
- Unlimited voice assistant questions
- Everything in Free, with no limits
Help us build it right.
Built for real techs doing real work. Download HVAC Tech Companion, take it on your next service call, and keep the tools you need in one place.
Free to start · Requires an iPhone with iOS 16 or newer.