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Built for the field. Not the office.

THE APP EVERY TECH NEEDS.

Stop guessing. Stop Googling. Stop calling tech support. My HVAC/R Tool puts 30 Plus years experience in your pocket — AI diagnosis, PT charts, superheat calculators, refrigerant logs, and more.

🔧 Start Free — No Credit Card See What’s Inside →
7+Field Tools
AIDiagnosis
EPACompliant Log
PWAWorks Offline
Sound Familiar?

EVERY TECH KNOWS THIS FEELING

Standing in front of a unit with a problem and no fast answers. That ends today.

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Calling Tech Support for 45 Minutes
On hold while the customer stares at you. The AI assistant gets you answers in seconds — not hold music.
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Paper PT Charts That Fall Apart
Dirty, torn, faded. My HVAC/R Tool has every refrigerant offline. No signal needed.
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Mental Math on Superheat
Enter your pressures and temps — the app calculates superheat and subcooling and tells you if something’s wrong.
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EPA Refrigerant Logs in a Notebook
A $44,000 fine waiting to happen. Log every pound and generate a compliant CSV in one tap.
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Callbacks That Kill Your Reputation
The system health score tracks every unit and alerts you before things fail. Call the customer before the breakdown.
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Customers Who Don’t Trust the Bill
One tap generates a professional plain-English service report. No disputes.
PT Chart Lookup Superheat Calculator Subcooling Calculator Delta-T Check CFM Calculator Ohm’s Law Capacitor MFD Check AI Diagnosis Refrigerant Log System Health Score Customer Reports Works Offline PT Chart Lookup Superheat Calculator Subcooling Calculator Delta-T Check CFM Calculator Ohm’s Law Capacitor MFD Check AI Diagnosis Refrigerant Log System Health Score Customer Reports Works Offline
What’s Inside

TOOLS THAT MAKE YOU LOOK LIKE A GENIUS

Everything a field tech needs. Nothing they don’t. Built specifically for HVAC/R.

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AI Diagnosis Assistant
Describe symptoms. Enter pressures. Get ranked probable causes with the exact next test to run. Like texting a 25-year master tech who always picks up.
Powered by Claude AI
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PT Chart + SH/SC Calculator
Every major refrigerant. Instant saturation temp from pressure. Automatic superheat and subcooling with plain-English status. Works offline.
Offline Capable
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Talk-to-Text Readings
Say “suction 118, head 385, superheat 14” and the app fills every field automatically. No typing. No glove removal.
Hands-Free
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Refrigerant Compliance Log
EPA 608 compliant tracking. Log every pound added or recovered. Export a compliant CSV in one tap. A2L safety warnings built in.
EPA 608 Compliant
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System Health Score
Every unit gets a 0-100 health score from its service history. Know which units are about to fail before they do.
Predictive
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Customer Service Reports
One tap generates a professional AI-written plain-English service report. Send by text or email. Stops billing disputes cold.
Professional
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Unit History + Profile
Every service visit, every reading, every part replaced attached to that unit forever. Patterns and callback history at a glance.
Full History
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Installs on Your Phone
Installs on iOS and Android like a native app. No app store needed. Opens full-screen. Works offline. Large tap targets for gloves.
No App Store Needed
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Photo Analysis
Point your camera at a nameplate or control board. AI reads it and pulls the relevant specs automatically.
AI Vision

“Every calculator you use on the job. Every chart you look up. Every time you call tech support. That’s all in one app now. And it’s smarter than any of those things.”

— What every tech says after their first job using it

How We Stack Up

NOTHING ELSE COMES CLOSE

The only all-in-one platform built specifically for HVAC/R field techs.

Feature My HVAC/R Tool Generic FSM Apps Single-Tool Apps
AI Diagnosis Assistant✅ Full conversation❌ None❌ None
PT Charts (offline)✅ All refrigerants❌ None⚠️ Some
Superheat / Subcooling✅ With diagnosis❌ None⚠️ Basic only
Talk-to-Text Readings✅ Smart parsing❌ None❌ None
EPA Refrigerant Log✅ CSV export❌ None❌ None
System Health Score✅ 0-100 per unit❌ None❌ None
Customer Reports✅ AI-written⚠️ Generic❌ None
Works Offline✅ Core tools cached❌ Online only⚠️ Sometimes
Built for HVAC/R✅ 100%❌ Generic trades⚠️ Partial

READY TO BE
THE BEST TECH
IN THE FIELD?

Start free. No credit card. No BS. The most powerful diagnostic tool the HVAC/R trade has ever seen — on your phone in 60 seconds.

🔧 Get My HVAC/R Tool Free

Free to start · Works on iOS & Android · No app store required

🇺🇸 Veteran Owned & Operated · U.S. Navy ⚓
NAVY TRAINED.
CERTIFIED & CREDENTIALED.
HOSPITAL PROVEN.
FIELD TESTED.

U.S. Navy veteran. Associates degree in the mechanical trades. Hospital HVAC and refrigeration. 30-plus years in the industry across every environment it has. Self-taught developer who built this app while still running a service department.

Not a VC. Not a tech bro who did some Google searches and thinks he understands the trades. Someone who has turned the wrenches, been on the rooftop at 2am, and knows exactly what you need when you’re standing in front of a system that won’t cooperate.

Read the Full Story →
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U.S. Navy Veteran
Stationed on a deployed aircraft carrier and a Marine Corps assault ship. Where “good enough” isn’t a standard — it doesn’t exist.
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Degree & Certifications
Associates degree in the mechanical trades plus industry certifications. The science to back up 30-plus years of hands-on work.
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Hospital HVAC & Refrigeration
Surgical suites, critical care, isolation rooms. The most demanding commercial environment in the industry.
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30-Plus Years · Field to Management
Field tech, tech support, account manager, service manager, department head. Every seat. Every equipment type. Currently still in the industry.