# HVAC Refrigerant PT vs Agga

The clearest difference is price: Agga at Free against HVAC Refrigerant PT's $6.99. Agga also leads on update cadence (every 2 weeks vs every 13 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Agga 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 ships an update every 13 months, Agga every 2 weeks. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | HVAC Refrigerant PT | Agga |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[4.8 (64 ratings)](https://appshunter.io/ios/app/hvac-refrigerant-pt/id633380165/reviews)** | — |
| Number of ratings | **64** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 1 MB | 54 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Cyberprodigy LLC](https://appshunter.io/developer/510284906) | [Alda Öryggi ehf](https://appshunter.io/developer/1756772822) |

## What reviewers say

### 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


### Agga

[App page](https://appshunter.io/ios/app/agga/id6480063456)

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

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Refrigerant PT free?

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

### Is Agga free?

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

### Do HVAC Refrigerant PT or Agga have ads?

Neither HVAC Refrigerant PT nor Agga shows ads.

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

HVAC Refrigerant PT ships an update every 13 months, and Agga every 2 weeks. Most recently, HVAC Refrigerant PT was updated on November 1, 2026 and Agga on November 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.*