# Coolbench: HVAC Toolkit — HVAC field tools & AI Coach

> HVAC field tools & AI Coach (iPhone/iPad app by Monirujjaman Monjil.)

- Source: https://appshunter.io/ios/app/coolbench-hvac-toolkit/id6785438308 (this page in markdown: same URL + `.md`)
- Developer: [Monirujjaman Monjil](https://appshunter.io/developer/1896125187)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: American English
- Released: 2026-07-08
- Data updated: 2026-07-17
- User reviews in markdown: https://appshunter.io/ios/app/coolbench-hvac-toolkit/id6785438308/reviews.md

## What is Coolbench?

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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Coolbench Pro | $12.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-07-08

No release notes.

## More apps by Monirujjaman Monjil

- [Forex Sessions: Smart Money](https://appshunter.io/ios/app/forex-sessions-smart-money/id6784470897)

All apps by Monirujjaman Monjil: https://appshunter.io/developer/1896125187

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-17.*