# Ref Tools vs HVAC Refrigerant PT

The clearest difference is price: Ref Tools at Free against HVAC Refrigerant PT's $6.99. Ref Tools also leads on update cadence (every 5 weeks vs every 13 months). HVAC Refrigerant PT's advantage is rating (4.8 vs 3.9) and review sentiment (83% vs 58%). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Ref Tools is free to download; HVAC Refrigerant PT costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HVAC Refrigerant PT holds the better App Store score, 4.8 against 3.9. Both are backed by a comparable volume of ratings — 52 and 64 respectively. Written reviews point the same way: 58% of Ref Tools's written reviews are positive against 83% of HVAC Refrigerant PT's.

Ref Tools ships an update every 5 weeks, HVAC Refrigerant PT every 13 months. The most recent releases landed on September 26, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Ref Tools | HVAC Refrigerant PT |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | [3.9 (52 ratings)](https://appshunter.io/ios/app/ref-tools/id472312541/reviews) | **[4.8 (64 ratings)](https://appshunter.io/ios/app/hvac-refrigerant-pt/id633380165/reviews)** |
| Number of ratings | 52 | **64** |
| Positive reviews | 57.6% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 13 months |
| Monetization | **Free** | Paid |
| Size | 98 MB | 1 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Danfoss A/S](https://appshunter.io/developer/423984644) | [Cyberprodigy LLC](https://appshunter.io/developer/510284906) |

## What reviewers say

### Ref Tools

[App page](https://appshunter.io/ios/app/ref-tools/id472312541)

This app provides HVACR technicians with essential tools and information for field service. It includes refrigerant calculators, troubleshooting guides, product finders, and access to spare parts. Listen to educational podcasts to enhance your knowledge on the go.

**Highlights:** Refrigerant Slider for P/T calculations, Solenoid valve coil testing tool, Refrigeration system troubleshooting guide, Product data finder, Spare parts ordering, Low-GWP refrigerant comparison, TXV Superheat optimization, Educational podcasts

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

**In-app purchases:** none


### HVAC Refrigerant PT

[App page](https://appshunter.io/ios/app/hvac-refrigerant-pt/id633380165)

This utility app provides HVAC professionals with essential refrigerant pressure and temperature charts, along with detailed physical properties for numerous refrigerants. It offers customizable units for temperature and pressure, making it a comprehensive tool for air conditioning system diagnostics and maintenance.

**Highlights:** Refrigerant pressure/temperature (PT) charts, Bubble and Dew Point data, Customizable temperature units (C/F), Selectable pressure units (psig, kPa, psia, etc.), Detailed refrigerant physical properties, Color code information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ref Tools free?

Ref Tools is free to download, with no in-app purchases.

### Is HVAC Refrigerant PT free?

HVAC Refrigerant PT costs $6.99, with no in-app purchases.

### Which has better reviews, Ref Tools or HVAC Refrigerant PT?

HVAC Refrigerant PT is rated higher. Ref Tools averages 3.9 out of 5 from 52 ratings, while HVAC Refrigerant PT averages 4.8 from 64 ratings.

### Do Ref Tools or HVAC Refrigerant PT have ads?

Neither Ref Tools nor HVAC Refrigerant PT shows ads.

### Which is updated more often, Ref Tools or HVAC Refrigerant PT?

Ref Tools ships an update every 5 weeks, and HVAC Refrigerant PT every 13 months. Most recently, Ref Tools was updated on September 26, 2026 and HVAC Refrigerant PT on September 8, 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.*