# HVAC PT Chart vs YJACK VIEW

The clearest difference is rating: HVAC PT Chart at 4.0 against YJACK VIEW's 2.9. HVAC PT Chart also leads on review sentiment (56% vs 30%) and iOS requirement (13.1 vs 15.6). YJACK VIEW's advantage is in-app purchases (none vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. HVAC PT Chart sells 1 one-off in-app purchase. YJACK VIEW asks for nothing beyond the download.

HVAC PT Chart holds the better App Store score, 4.0 against 2.9. Both are backed by a comparable volume of ratings — 8 and 19 respectively. Written reviews point the same way: 56% of HVAC PT Chart's written reviews are positive against 30% of YJACK VIEW's.

HVAC PT Chart ships an update every 4 months, YJACK VIEW every 5 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HVAC PT Chart | YJACK VIEW |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (8 ratings)](https://appshunter.io/ios/app/hvac-pt-chart/id508212589/reviews)** | [2.9 (19 ratings)](https://appshunter.io/ios/app/yjack-view/id1492358956/reviews) |
| Number of ratings | 8 | **19** |
| Positive reviews | **55.6% of reviews** | 30.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 27 MB | 18 MB |
| Requires iOS | **13.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Carmel Software Corporation](https://appshunter.io/developer/317970398) | [YELLOW JACKET](https://appshunter.io/developer/924701171) |

## What reviewers say

### HVAC PT Chart

[App page](https://appshunter.io/ios/app/hvac-pt-chart/id508212589)

This tool provides HVAC technicians with instant access to pressure and temperature data for over 100 refrigerants. It allows users to input one value to find the other, view detailed refrigerant properties, and email comprehensive charts and data.

**Highlights:** Pressure/temperature lookup for 100+ refrigerants, Input temperature to find pressure, or vice versa, Slider control for precise value selection, Email complete PT chart lists and refrigerant properties, Display common refrigerant properties, Adjust for atmospheric pressure based on city elevation, English and Metric unit options

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HVAC Equipment Locator | $9.99 | one-time |


### YJACK VIEW

[App page](https://appshunter.io/ios/app/yjack-view/id1492358956)

This app provides a comprehensive HVAC/R diagnostic solution by integrating with specialized hardware. It allows users to view live data, create and share service reports, and perform detailed system analysis for pressure, temperature, evacuation, and more.

**Highlights:** Live data monitoring, Customizable PDF service reports, Enhanced datalogging, Pressure and temperature analysis, Evacuation monitoring, Psychrometric analysis, Electrical readings

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

**In-app purchases:** none


## Frequently asked questions

### Is HVAC PT Chart free?

HVAC PT Chart is free to download, with in-app purchases available.

### Is YJACK VIEW free?

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

### Which has better reviews, HVAC PT Chart or YJACK VIEW?

HVAC PT Chart is rated higher. HVAC PT Chart averages 4.0 out of 5 from 8 ratings, while YJACK VIEW averages 2.9 from 19 ratings.

### Do HVAC PT Chart or YJACK VIEW have ads?

Neither HVAC PT Chart nor YJACK VIEW shows ads.

### Which is updated more often, HVAC PT Chart or YJACK VIEW?

HVAC PT Chart ships an update every 4 months, and YJACK VIEW every 5 months. Most recently, HVAC PT Chart was updated on October 27, 2026 and YJACK VIEW on October 24, 2026.

---

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