# ASHRAE HVAC PT Chart vs Trane® Technician

The clearest difference is price: Trane® Technician at Free against ASHRAE HVAC PT Chart's $0.99. Trane® Technician also leads on rating (4.8 vs 1.0) and review sentiment (25% vs 0%). ASHRAE HVAC PT Chart's advantage is chart position (#87 vs unranked) and iOS requirement (11.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Trane® Technician is free to download; ASHRAE HVAC PT Chart costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Trane® Technician holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Trane® Technician has 223 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of ASHRAE HVAC PT Chart's written reviews are positive against 25% of Trane® Technician's.

ASHRAE HVAC PT Chart ships an update every 3 months, Trane® Technician every 5 weeks. Both last shipped on November 8, 2026.

## The numbers

| Metric | ASHRAE HVAC PT Chart | Trane® Technician |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/ashrae-hvac-pt-chart/id1273373336/reviews) | **[4.8 (223 ratings)](https://appshunter.io/ios/app/trane-technician/id1521293298/reviews)** |
| Number of ratings | 2 | **223** |
| Positive reviews | 0.0% of reviews | **25.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Best chart rank | **#87** | — |
| Size | 24 MB | 233 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [ASHRAE, Inc.](https://appshunter.io/developer/375374912) | [TRANE U.S. INC](https://appshunter.io/developer/583378910) |

## What reviewers say

### ASHRAE HVAC PT Chart

[App page](https://appshunter.io/ios/app/ashrae-hvac-pt-chart/id1273373336)

**Currently charting:** #87 Top Paid · Business (US App Store)

This app provides HVAC technicians with a comprehensive electronic pressure-temperature calculator for over 100 refrigerants. It allows for quick lookups, email sharing of data, and displays detailed refrigerant properties. The app is optimized for iOS devices and includes global city elevation data for accurate atmospheric pressure calculations.

**Highlights:** 100+ HVAC refrigerants, Pressure-temperature lookups, Email data sharing, Refrigerant properties database, Global city elevation data, English and Metric units

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

**In-app purchases:** none


### Trane® Technician

[App page](https://appshunter.io/ios/app/trane-technician/id1521293298)

This app streamlines HVAC installation, commissioning, and service for technicians. It offers guided setup, real-time system monitoring, and remote configuration capabilities for smart thermostats. Access product literature and training resources to enhance daily work.

**Highlights:** Streamlined installation and commissioning, Real-time system monitoring and alerts, Remote configuration of smart thermostats, Guided installation with wiring diagrams, Access to product literature and training, Dealer Remote Configuration (DRC)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ASHRAE HVAC PT Chart free?

ASHRAE HVAC PT Chart costs $0.99, with no in-app purchases.

### Is Trane® Technician free?

Trane® Technician is free to download, with no in-app purchases.

### Which has better reviews, ASHRAE HVAC PT Chart or Trane® Technician?

Trane® Technician is rated higher. ASHRAE HVAC PT Chart averages 1.0 out of 5 from 2 ratings, while Trane® Technician averages 4.8 from 223 ratings.

### Do ASHRAE HVAC PT Chart or Trane® Technician have ads?

Neither ASHRAE HVAC PT Chart nor Trane® Technician shows ads.

### Which is updated more often, ASHRAE HVAC PT Chart or Trane® Technician?

ASHRAE HVAC PT Chart ships an update every 3 months, and Trane® Technician every 5 weeks. Most recently, ASHRAE HVAC PT Chart was updated on November 8, 2026 and Trane® Technician 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.*