# CoolCalc - HVAC Tools

> Superheat, PT chart & reports

Canonical page: [https://chrome-stats.com/d/id6773545951](https://chrome-stats.com/d/id6773545951)

## Overview

- **ID:** `id6773545951`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** 杰 陈
- **Category:** Utilities
- **Version:** 1.3.0
- **Last updated:** 2026-09-11
- **First published:** 2026-07-29
- **Size:** 28 MB
- **Data as of:** 2026-09-18
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/coolcalc-hvac-tools/id6773545951)
- **Website:** [https://sites.google.com/view/privacypolicyforcoolcalc](https://sites.google.com/view/privacypolicyforcoolcalc)
- **Privacy policy:** [https://sites.google.com/view/privacypolicyforcoolcalc](https://sites.google.com/view/privacypolicyforcoolcalc)

## Description

Fast HVAC field tools for the job in front of you. Check charge, size ducts, capture photos and signatures, and share a clean PDF—offline, with no account.

  CoolCalc is the offline HVAC field toolkit built for service technicians — run the numbers, document the job, and hand your customer a professional PDF report, all without a signal.

  No account. No cloud. No subscription lock-in. Buy once, use it forever.

  8 FIELD CALCULATORS
  • PT Chart — Instant pressure-temperature lookup, including A2L refrigerants
  • Charge Check — Superheat & subcooling with built-in Target Superheat estimation
  • Duct Sizer — Size round or rectangular ducts by airflow and velocity
  • Airflow Quick Calcs — CFM, BTU, Delta T, tons, kW, and ACH in one tap
  • Static Pressure — TESP diagnostics checklist
  • Capacitor Test — Verify run/start capacitors against rated values
  • Refrigerant Log — Track charge added and recovered per job
  • System Quick Score — Fast health snapshot of the whole system

  A2L READY
  • Built for the 2025 refrigerant transition — R-32, R-454B and more
  • Safety-class flags and leak-check reference so you stay compliant

  CALCULATE → DOCUMENT → REPORT (the loop other tools don't have)
  • Save any calculation straight into a job record
  • Attach photos with captions, customer info, and system details
  • Generate a clean, branded PDF report and share via email, AirDrop, or any app

  REFRIGERANT REFERENCE
  • Quick PT data for R-410A, R-22, R-134a, R-32, R-454B and more
  • Field-ready tables you can check in seconds

  PRIVACY FIRST
  • No account, no server uploads — your jobs, photos, and reports stay on device
  • Camera and Photos access requested only when you need it

  PRO UPGRADE — ONE-TIME OR SUBSCRIPTION
  • Unlimited jobs and PDF exports, more photos per job
  • Full refrigerant reference library
  • Lifetime option: pay once, keep it for good

  Built by HVAC techs, for HVAC techs. Fast, focused, and made for the field — from the rooftop to the crawlspace.

  Terms of Use (EULA): https://sites.google.com/view/terms-of-use-for-coolcalc
  Privacy Policy: https://sites.google.com/view/privacypolicyforcoolcalc

## Rankings

- #1,739,187 — Overall

## Similar extensions and apps

- [Coolbench: HVAC Toolkit](https://chrome-stats.com/d/id6785438308)
- [CR-Tech: HVAC Field Toolkit](https://chrome-stats.com/d/id6799841891)
- [Airkit: HVAC Calculator](https://chrome-stats.com/d/id6789883984)
- [HVAC Calculator - FieldCalc](https://chrome-stats.com/d/id6784082740)
- [HVAC Calc: Superheat & P/T](https://chrome-stats.com/d/id6782998769)
- [FieldCalc](https://chrome-stats.com/d/id6787528767)
- [Saturon: A2L PT Chart](https://chrome-stats.com/d/id6781320978)
- [Superheat & Subcool Calc](https://chrome-stats.com/d/id6764646450) — 3.00 / 5
- [HVAC PT Chart Toolkit](https://chrome-stats.com/d/id6770447697)
- [Flux HVAC: Tech Calculator](https://chrome-stats.com/d/id6756405485) — 5.00 / 5
- [Haltron HVAC Pro: P/T & Calc](https://chrome-stats.com/d/id6753690075) — 5.00 / 5
- [Refrigerant Charge Calculator](https://chrome-stats.com/d/id6762469018) — 4.70 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6773545951)