# Copeland PT Pro vs Carrier® Comm Lit

The clearest difference is review sentiment: Copeland PT Pro at 42% against Carrier® Comm Lit's 0%. Copeland PT Pro also leads on rating (3.0 vs 2.6) and update cadence (every 7 months vs every 28 months). Carrier® Comm Lit's advantage is iOS requirement (5.1.1 vs 17.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Copeland PT Pro holds the better App Store score, 3.0 against 2.6. Both are backed by a comparable volume of ratings — 8 and 5 respectively. Written reviews point the same way: 42% of Copeland PT Pro's written reviews are positive against 0% of Carrier® Comm Lit's.

Copeland PT Pro ships an update every 7 months, Carrier® Comm Lit every 28 months. The most recent releases landed on October 30, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Copeland PT Pro | Carrier® Comm Lit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (8 ratings)](https://appshunter.io/ios/app/copeland-pt-pro/id465298520/reviews)** | [2.6 (5 ratings)](https://appshunter.io/ios/app/carrier-comm-lit/id620449513/reviews) |
| Number of ratings | **8** | 5 |
| Positive reviews | **41.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 28 months |
| Monetization | Free | Free |
| Size | 7 MB | 33 MB |
| Requires iOS | 17.6 | **5.1.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Copeland LP](https://appshunter.io/developer/464252882) | [Carrier Corporation](https://appshunter.io/developer/542004889) |

## What reviewers say

### Copeland PT Pro

[App page](https://appshunter.io/ios/app/copeland-pt-pro/id465298520)

This app offers on-the-go pressure and temperature conversions for refrigerants. Easily find saturated pressure based on temperature or saturated temperature based on pressure. It's a free tool for iPhone and iPad.

**Highlights:** Pressure and temperature conversions, Refrigerant selection, Temperature to pressure lookup, Pressure to temperature lookup, Supports Celsius, Fahrenheit, Bar, and Psig

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

**In-app purchases:** none


### Carrier® Comm Lit

[App page](https://appshunter.io/ios/app/carrier-comm-lit/id620449513)

Access technical documents for Carrier® products directly from your mobile device. Filter searches by document type and status to find current or non-current information.

**Highlights:** Search technical documents, Filter by document type, Filter by document status, Access from mobile device, Find current and non-current documents

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Copeland PT Pro free?

Copeland PT Pro is free to download, with no in-app purchases.

### Is Carrier® Comm Lit free?

Carrier® Comm Lit is free to download, with no in-app purchases.

### Which has better reviews, Copeland PT Pro or Carrier® Comm Lit?

Copeland PT Pro is rated higher. Copeland PT Pro averages 3.0 out of 5 from 8 ratings, while Carrier® Comm Lit averages 2.6 from 5 ratings.

### Do Copeland PT Pro or Carrier® Comm Lit have ads?

Neither Copeland PT Pro nor Carrier® Comm Lit shows ads.

### Which is updated more often, Copeland PT Pro or Carrier® Comm Lit?

Copeland PT Pro ships an update every 7 months, and Carrier® Comm Lit every 28 months. Most recently, Copeland PT Pro was updated on October 30, 2026 and Carrier® Comm Lit on October 18, 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.*