# Refrigerant Calculator vs PT Chart Refrigerants EU

The clearest difference is rating: Refrigerant Calculator at 4.0 against PT Chart Refrigerants EU's 3.7. Refrigerant Calculator also leads on update cadence (every 4 months vs every 14 months). PT Chart Refrigerants EU's advantage is iOS requirement (11.0 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Refrigerant Calculator holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

Refrigerant Calculator ships an update every 4 months, PT Chart Refrigerants EU every 14 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | Refrigerant Calculator | PT Chart Refrigerants EU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/refrigerant-calculator/id494446830/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/pt-chart-refrigerants-eu/id632697935/reviews) |
| Number of ratings | 3 | 3 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 14 months |
| Monetization | Free | Free |
| Size | 33 MB | 85 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Caio Pinheiro](https://appshunter.io/developer/494446833) | [Honeywell International, Inc.](https://appshunter.io/developer/311222963) |

## What reviewers say

### Refrigerant Calculator

[App page](https://appshunter.io/ios/app/refrigerant-calculator/id494446830)

This app helps refrigeration technicians, engineers, and students analyze refrigeration cycles and convert pressure/temperature data. It offers offline fluid libraries, cycle analysis with thermodynamic properties, and floating setpoint estimates for energy savings. Calculations can be performed offline without an account.

**Highlights:** Pressure/temperature conversion, Offline fluid library (163 fluids), Refrigeration cycle analysis, Floating setpoint estimates, Calculation history, Offline functionality, Multi-language support

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

**In-app purchases:** none


### PT Chart Refrigerants EU

[App page](https://appshunter.io/ios/app/pt-chart-refrigerants-eu/id632697935)

This reference tool provides HVAC mechanics with a digital pressure-temperature (PT) chart. Users can select refrigerants to access necessary data and quickly calculate superheat and subcool averages directly from their iPhone or iPad.

**Highlights:** Digital pressure-temperature chart, Refrigerant selection, Field data access, Superheat and subcool calculations, Touchscreen interface

**In-app purchases:** none


## Frequently asked questions

### Is Refrigerant Calculator free?

Refrigerant Calculator is free to download, with no in-app purchases.

### Is PT Chart Refrigerants EU free?

PT Chart Refrigerants EU is free to download, with no in-app purchases.

### Which has better reviews, Refrigerant Calculator or PT Chart Refrigerants EU?

Refrigerant Calculator is rated higher. Refrigerant Calculator averages 4.0 out of 5 from 3 ratings, while PT Chart Refrigerants EU averages 3.7 from 3 ratings.

### Do Refrigerant Calculator or PT Chart Refrigerants EU have ads?

Neither Refrigerant Calculator nor PT Chart Refrigerants EU shows ads.

### Which is updated more often, Refrigerant Calculator or PT Chart Refrigerants EU?

Refrigerant Calculator ships an update every 4 months, and PT Chart Refrigerants EU every 14 months. Most recently, Refrigerant Calculator was updated on November 6, 2026 and PT Chart Refrigerants EU on November 6, 2026.

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