Built for the Field · Works Offline

EVERY TOOL
A TECH NEEDS
IN ONE APP

P/T charts, superheat, subcooling, EPA 608 study, NATE prep, digital forms, fault codes — offline, on your phone, always ready on the job.

❄️ OPEN THE APP SEE WHAT'S INSIDE
35
Field Tools
526
Study Questions
8
Digital Forms
100%
Offline
P/T Chart ◈ Superheat Calculator ◈ Subcooling Calculator ◈ EPA 608 Prep ◈ NATE Certification ◈ Fault Codes ◈ Wire Sizing ◈ Leak Rate Tracker ◈ Oil Compatibility ◈ Refrigerant Cross-Ref ◈ A2L Module ◈ Digital Work Orders ◈ EPA Recovery Log ◈ P/T Chart ◈ Superheat Calculator ◈ Subcooling Calculator ◈ EPA 608 Prep ◈ NATE Certification ◈ Fault Codes ◈ Wire Sizing ◈ Leak Rate Tracker ◈ Oil Compatibility ◈ Refrigerant Cross-Ref ◈ A2L Module ◈ Digital Work Orders ◈ EPA Recovery Log ◈
◈ Field Tools

35 TOOLS.
ALL OFFLINE.

Every calculator and reference you reach for on the job — built in, no signal needed, no subscription wall.

🌡️
P/T Chart
Pressure-temperature relationships for all major refrigerants including A2L blends. Bubble and dew point tables.
Refrigerants
📊
Superheat / Subcooling
Target and actual superheat and subcooling calculators. Fixed orifice and TXV system support.
Charging
⚡
Wire Sizing
NEC-based wire gauge calculator by amperage, distance, and voltage drop. THHN/THWN support.
Electrical
💧
Leak Rate Tracker
EPA Section 608 compliant leak rate calculation. Annual leak rate with circuit charge size input.
EPA Compliance
🔄
Refrigerant Cross-Ref
Drop-in and retrofit refrigerant substitution guide. R-22, R-404A, R-410A replacement lookups.
Refrigerants
🛢️
Oil Compatibility
Compressor oil type compatibility by refrigerant and system type. POE, MO, AB selection guide.
Compressors
❄️
Defrost Timer
Defrost cycle calculator with initiation method, duration, and termination temperature logic.
Refrigeration
🔌
Amp Rate Calculator
MCA, MOP, and RLA calculations. Single and three-phase motor load analysis for field verification.
Electrical
📋
Fault Code Lookup
Error code reference across major brands. Diagnose faster without hunting through manuals.
Diagnostics
A refrigeration system has a high suction pressure and a high discharge pressure. The most likely cause is:
A Low refrigerant charge
B Overcharge or non-condensables in the system ✓
C Restricted liquid line
D Weak compressor valves
526
Questions
215
Flashcards
FSRS
Algorithm
◈ Study Engine

PASS YOUR
608. EARN
YOUR NATE.

The same spaced-repetition algorithm used by top-tier test prep platforms — built into your field app.

  • 🧠
    FSRS v5 Spaced Repetition
    Surfaces questions at the exact moment you're about to forget them. Smarter than flashcards.
  • 🎯
    Adaptive Quiz Mode
    Focuses on your weak spots. Mock exam mode simulates real EPA 608 test conditions.
  • 📈
    Readiness Score
    Know exactly how ready you are before test day. Track mastery by topic and exam section.
  • 🔥
    NATE Certification Prep
    Core + Commercial Refrigeration + A/C Service + Low-GWP tracks. All in one place.
◈ Digital Forms

PAPERWORK
WITHOUT
THE PAPER.

All 8 forms auto-save drafts. Fill on-site, print or PDF on the way out.

📝
Work Order
Full service ticket with customer info, equipment, labor, and materials
♻️
EPA Recovery
Section 608 compliant recovery documentation with refrigerant weights
🔧
PM Report
Preventive maintenance checklist with readings, findings, and recommendations
🚀
Start-Up Report
New equipment commissioning form with electrical and refrigerant data
📞
Callback Report
Documents return visits with root cause analysis and resolution steps
🔍
Leak Inspection
EPA-compliant leak check documentation with location mapping
📒
Annual Refrigerant Log
Running refrigerant tracking log for Section 608 record requirements
🗑️
Disposal Form
Equipment disposal with refrigerant recovery confirmation and certification
◈ Pricing

ONE PRICE.
EVERYTHING INCLUDED.

No tiers. No locked features. No upsells. Every tool, every question, every form — for less than a lunch.

ColdCase Pro — Full Access
$9.99/month
  • ✓ 35 field calculators & tools
  • ✓ 526 EPA 608 study questions
  • ✓ 215 flashcards (FSRS algorithm)
  • ✓ NATE certification prep
  • ✓ 8 printable digital forms
  • ✓ A2L refrigerant module
  • ✓ Equipment & parts database
  • ✓ 100% offline — no signal needed
  • ✓ 32 reference guide topics
  • ✓ Works on any phone or tablet
GET STARTED — $9.99 / MONTH
Cancel anytime · No contracts · Instant access
◈ Who It's For

BUILT FOR
THE FIELD.

🛠️
Working Technicians
Pull up a P/T chart, calculate superheat, or fill out a work order — all from the same app, no signal required. Less time digging, more time fixing.
📚
Techs Getting Certified
Study for EPA 608 or NATE on your lunch break or between calls. Adaptive quizzing that actually learns what you don't know.
🏢
Shop Owners & Managers
Standardize your team on one set of tools and forms. Put your whole crew on the same page — literally the same app.

THE CASE
IS ALWAYS
OPEN.

Every tool a commercial refrigeration tech needs. One app. One price.

❄️ LAUNCH COLDCASE PRO