# CoolCalc vs Coolbench

The clearest difference is update cadence: CoolCalc at fortnightly against Coolbench's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CoolCalc sells 3 in-app purchases, starting at $4.99 per month and Coolbench sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CoolCalc ships an update fortnightly, Coolbench every 3 months. The most recent releases landed on November 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CoolCalc | Coolbench |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/coolcalc-hvac-tools/id6773545951/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 7 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [杰 陈](https://appshunter.io/developer/1746018277) | [Monirujjaman Monjil](https://appshunter.io/developer/1896125187) |

## What reviewers say

### CoolCalc

[App page](https://appshunter.io/ios/app/coolcalc-hvac-tools/id6773545951)

This app provides HVAC technicians with essential offline tools for field service. It includes PT charts, charge calculations, duct sizing, and diagnostic tools. Generate detailed PDF reports with job details, photos, and notes directly from your device.

**Highlights:** Offline PT chart lookup, Superheat and subcooling calculations, Duct sizing (round/rectangular), Airflow and psychrometric calculations, Diagnostic tools, PDF service report generation, Refrigerant service logging

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CoolCalc Pro Monthly | $4.99 | per month |
| CoolCalc Pro Yearly | $19.99 | per year |
| CoolCalc Pro Lifetime | $29.99 | one-time |


### Coolbench

[App page](https://appshunter.io/ios/app/coolbench-hvac-calculator/id6785438308)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is CoolCalc free?

CoolCalc is free to download, with in-app purchases available.

### Is Coolbench free?

Coolbench is free to download, with in-app purchases available.

### Do CoolCalc or Coolbench have ads?

Neither CoolCalc nor Coolbench shows ads.

### Which is updated more often, CoolCalc or Coolbench?

CoolCalc ships an update fortnightly, and Coolbench every 3 months. Most recently, CoolCalc was updated on November 10, 2026 and Coolbench on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*