# CPF TechTools vs Easy Isometric

The clearest difference is rating: CPF TechTools at 4.5 against Easy Isometric's 2.6. CPF TechTools also leads on in-app purchases (none vs 2) and review sentiment (55% vs 34%). Easy Isometric's advantage is iOS requirement (12.0 vs 14.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Easy Isometric sells 2 in-app purchases, starting at $0.99 per month. CPF TechTools asks for nothing beyond the download.

CPF TechTools holds the better App Store score, 4.5 against 2.6. Both are backed by a comparable volume of ratings — 22 and 57 respectively. Written reviews point the same way: 55% of CPF TechTools's written reviews are positive against 34% of Easy Isometric's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on July 7, 2026 and August 2, 2026 respectively.

## The numbers

| Metric | CPF TechTools | Easy Isometric |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (22 ratings)](https://appshunter.io/ios/app/cpf-techtools/id679297384/reviews)** | [2.6 (57 ratings)](https://appshunter.io/ios/app/easy-isometric-pipe-iso-app/id1463534058/reviews) |
| Number of ratings | 22 | **57** |
| Positive reviews | **54.5% of reviews** | 34.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Subscription |
| Size | 8 MB | 90 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Charlotte Pipe and Foundry Company](https://appshunter.io/developer/679297387) | [Construkt Technologies Inc.](https://appshunter.io/developer/1463534057) |

## 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


### Easy Isometric

[App page](https://appshunter.io/ios/app/easy-isometric-pipe-iso-app/id1463534058)

Create accurate pipe isometric drawings on your iPad or iPhone. This app automates calculations and labeling, generating bills of materials and PDF reports for efficient fabrication and purchasing.

**Highlights:** Automated dimension calculations, Integrated ASME and ASTM standards, Bill of Materials generator, Automatic labeling of components, PDF sharing of drawings and BOM, Supports iPad and iPhone

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Annual Subscription | $9.99 | per year |


## Frequently asked questions

### Is CPF TechTools free?

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

### Is Easy Isometric free?

Easy Isometric is free to download, with in-app purchases available.

### Which has better reviews, CPF TechTools or Easy Isometric?

CPF TechTools is rated higher. CPF TechTools averages 4.5 out of 5 from 22 ratings, while Easy Isometric averages 2.6 from 57 ratings.

### Do CPF TechTools or Easy Isometric have ads?

Neither CPF TechTools nor Easy Isometric shows ads.

### Which is updated more often, CPF TechTools or Easy Isometric?

CPF TechTools ships an update every 2 months, and Easy Isometric every 2 months. Most recently, CPF TechTools was updated on July 7, 2026 and Easy Isometric on August 2, 2026.

---

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