# McCalc Fusion Calculator vs CPF TechTools

The clearest difference is rating: CPF TechTools at 4.3 against McCalc Fusion Calculator's 3.4. CPF TechTools also leads on review sentiment (55% vs 36%) and iOS requirement (14.0 vs 16.4). On price, ratings volume, update cadence and ads there is nothing between them.

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

CPF TechTools holds the better App Store score, 4.3 against 3.4. Both are backed by a comparable volume of ratings — 18 and 23 respectively. Written reviews point the same way: 36% of McCalc Fusion Calculator's written reviews are positive against 55% of CPF TechTools's.

McCalc Fusion Calculator ships an update every 3 months, CPF TechTools every 2 months. The most recent releases landed on October 22, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | McCalc Fusion Calculator | CPF TechTools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (18 ratings)](https://appshunter.io/ios/app/mccalc-fusion-calculator/id376891708/reviews) | **[4.3 (23 ratings)](https://appshunter.io/ios/app/cpf-techtools/id679297384/reviews)** |
| Number of ratings | 18 | **23** |
| Positive reviews | 35.7% of reviews | **54.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 4 MB | 8 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [McElroy Manufacturing, Inc.](https://appshunter.io/developer/376891711) | [Charlotte Pipe and Foundry Company](https://appshunter.io/developer/679297387) |

## What reviewers say

### McCalc Fusion Calculator

[App page](https://appshunter.io/ios/app/mccalc-fusion-calculator/id376891708)

This app calculates the correct fusion pressure for HDPE and Polypropylene pipe jobs. It simplifies the process by selecting your fusion machine and entering pipe details to determine the recommended theoretical gauge pressure.

**Highlights:** Select McElroy fusion machines, Choose from nine international standards, Enter pipe size in multiple units, Input wall thickness via dimensional ratio or actual thickness, Specify interfacial and drag pressure, Supports English, Spanish, and Portuguese

**Features:** macOS Compatibility

**In-app purchases:** none


### CPF TechTools

[App page](https://appshunter.io/ios/app/cpf-techtools/id679297384)

This app offers essential on-the-go technical calculators for plumbing professionals. It includes tools for expansion/contraction and temperature de-rating, with more features planned for future updates.

**Highlights:** Expansion calculator, Contraction calculator, Temperature de-rating calculator, Tools for plumbing professionals, Future tool additions planned

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is McCalc Fusion Calculator free?

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

### Is CPF TechTools free?

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

### Which has better reviews, McCalc Fusion Calculator or CPF TechTools?

CPF TechTools is rated higher. McCalc Fusion Calculator averages 3.4 out of 5 from 18 ratings, while CPF TechTools averages 4.3 from 23 ratings.

### Do McCalc Fusion Calculator or CPF TechTools have ads?

Neither McCalc Fusion Calculator nor CPF TechTools shows ads.

### Which is updated more often, McCalc Fusion Calculator or CPF TechTools?

McCalc Fusion Calculator ships an update every 3 months, and CPF TechTools every 2 months. Most recently, McCalc Fusion Calculator was updated on October 22, 2026 and CPF TechTools on October 23, 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.*