# Refrigerant Calculator vs P

The clearest difference is review sentiment: P at 100% against Refrigerant Calculator's 50%. P also leads on rating (4.8 vs 4.0) and ratings volume (52 vs 3). Refrigerant Calculator's advantage is update cadence (every 4 months vs every 12 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

P holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: P has 52 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of Refrigerant Calculator's written reviews are positive against 100% of P's.

Refrigerant Calculator ships an update every 4 months, P every 12 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Refrigerant Calculator | P |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (3 ratings)](https://appshunter.io/ios/app/refrigerant-calculator/id494446830/reviews) | **[4.8 (52 ratings)](https://appshunter.io/ios/app/p-t-calculator/id1252176525/reviews)** |
| Number of ratings | 3 | **52** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 12 months |
| Monetization | Free | Free |
| Size | 33 MB | 6 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Caio Pinheiro](https://appshunter.io/developer/494446833) | [National Refrigerants Inc.](https://appshunter.io/developer/1252176524) |

## 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


### P

[App page](https://appshunter.io/ios/app/p-t-calculator/id1252176525)

This tool simplifies HVAC/R technician tasks by calculating pressure/temperature relationships, superheat, and subcool. It automatically adjusts for altitude and offers English/Metric units. Easily access favorite refrigerants and supplementary information.

**Highlights:** Pressure/Temperature calculation, Superheat/Subcool calculation, Automatic altitude correction, English/Metric units, Favorite refrigerants list, Refrigerant blend data

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

**In-app purchases:** none


## Frequently asked questions

### Is Refrigerant Calculator free?

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

### Is P free?

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

### Which has better reviews, Refrigerant Calculator or P?

P is rated higher. Refrigerant Calculator averages 4.0 out of 5 from 3 ratings, while P averages 4.8 from 52 ratings.

### Do Refrigerant Calculator or P have ads?

Neither Refrigerant Calculator nor P shows ads.

### Which is updated more often, Refrigerant Calculator or P?

Refrigerant Calculator ships an update every 4 months, and P every 12 months. Most recently, Refrigerant Calculator was updated on November 6, 2026 and P on November 2, 2026.

---

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