# CPF TechTools vs Plumbers & Pipefitters Local 9

The clearest difference is review sentiment: Plumbers & Pipefitters Local 9 at 100% against CPF TechTools's 55%. Plumbers & Pipefitters Local 9 also leads on rating (5.0 vs 4.3) and iOS requirement (11.0 vs 14.0). CPF TechTools's advantage is ads (none vs shown) and ratings volume (23 vs 1). On price, in-app purchases and device support there is nothing between them.

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

Plumbers & Pipefitters Local 9 holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: CPF TechTools has 23 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 55% of CPF TechTools's written reviews are positive against 100% of Plumbers & Pipefitters Local 9's.

CPF TechTools ships an update every 2 months, Plumbers & Pipefitters Local 9 every 6 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CPF TechTools | Plumbers & Pipefitters Local 9 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (23 ratings)](https://appshunter.io/ios/app/cpf-techtools/id679297384/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/plumbers-and-pipefitters-local-9/id1612227869/reviews)** |
| Number of ratings | **23** | 1 |
| Positive reviews | 54.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | **Free** | Ad-supported |
| Size | 8 MB | 23 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Charlotte Pipe and Foundry Company](https://appshunter.io/developer/679297387) | [Plumbers and Pipefitters Union, Local 9](https://appshunter.io/developer/1612227871) |

## What reviewers say

### 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


### Plumbers & Pipefitters Local 9

[App page](https://appshunter.io/ios/app/plumbers-and-pipefitters-local-9/id1612227869)

This app provides members with information about the Plumbers and Pipefitters Local 9 union. Access details on union projects, view upcoming events, and check your benefits. Stay connected with important union updates through push notifications.

**Highlights:** Push notifications, Event listings, Benefits information, Project details, Union updates

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CPF TechTools free?

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

### Is Plumbers & Pipefitters Local 9 free?

Plumbers & Pipefitters Local 9 is free to download, with no in-app purchases.

### Which has better reviews, CPF TechTools or Plumbers & Pipefitters Local 9?

Plumbers & Pipefitters Local 9 is rated higher. CPF TechTools averages 4.3 out of 5 from 23 ratings, while Plumbers & Pipefitters Local 9 averages 5.0 from 1 ratings.

### Do CPF TechTools or Plumbers & Pipefitters Local 9 have ads?

Plumbers & Pipefitters Local 9 shows ads; CPF TechTools does not.

### Which is updated more often, CPF TechTools or Plumbers & Pipefitters Local 9?

CPF TechTools ships an update every 2 months, and Plumbers & Pipefitters Local 9 every 6 months. Most recently, CPF TechTools was updated on November 1, 2026 and Plumbers & Pipefitters Local 9 on November 3, 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.*