CoolCalc vs Coolbench

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

Coolbench is the all-in-one toolkit for HVAC/R technicians — everything you reach for on a service call, in one fast, offline-first app. CHARGING ASSISTANT • Live superheat and subcooling with instant ON-TARGET / ADD / RECOVER verdicts • Saturation auto-computed from real refrigerant data (CoolProp) • Save readings to job history and export a PDF report 30+ PRO CALCULATORS • Target superheat, compression ratio, condenser split • Airflow CFM, air velocity, duct sizing (round/rect/oval), static pressure • Heat load (Manual-J-lite), psychrometrics, enthalpy, grains, dew point • Electrical: voltage drop, wire size, 3-phase power, kW/HP/BTU • Gas input, hydronic GPM, EER, furnace temp rise and more 150+ REFRIGERANTS & PT CHARTS • Pressure–temperature tables with glide, bubble and dew points • GWP, oil type and replaces / replaced-by lineage for each refrigerant EPA 608 EXAM PREP • Hundreds of original practice questions — Core and Type I / II / III • Study mode with instant feedback, plus a timed Exam mode with full review ACADEMY • 10 field lessons: refrigeration cycle, charging, airflow, electrical, psychrometrics and more AI COACH (online) • Ask HVAC questions and get clear, practical answers in the field • Focused on HVAC/R topics only Coolbench works fully offline (except the AI Coach). No account, no ads, no tracking. Coolbench Pro is a one-time purchase that unlocks all calculators, the full refrigerant set, premium EPA prep and the AI Coach. No subscription, ever. Coolbench is an educational reference tool. Always verify against manufacturer specifications and follow all applicable codes. ——— Coolbench Pro is a one-time purchase — no subscription, no recurring charges. Terms of Use: https://sites.google.com/view/terms-of-use-coolbench-hvac-to/home Privacy Policy: https://sites.google.com/view/privacypolicycoolbenchhvactool/home