# CPF TechTools > Plumbing technical calculators for expansion, contraction, and temperature de-rating. (iPhone/iPad app by Charlotte Pipe and Foundry Company.) - Source: https://appshunter.io/ios/app/cpf-techtools/id679297384 (this page in markdown: same URL + `.md`) - Developer: [Charlotte Pipe and Foundry Company](https://appshunter.io/developer/679297387) - Category: Business, Utilities - Price: Free - Rating: 4.50/5 from 22 App Store ratings · 11 written reviews indexed - Age rating: 4+ - Requires: iOS 14.0 · 8 MB - Languages: American English - Released: 2013-08-08 - Data updated: 2026-07-07 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/cpf-techtools/id679297384/reviews.md ## What is CPF TechTools? Charlotte Pipe Tech Tools App provides simple, on-the-go technical tools for the plumbing industry. Tools featured include an expansion and contraction calculator and a temperature de-rating calculator. Ideal for plumbing engineers, contractors, architects and other industry professionals. Additional tools will be added soon. ## Key features - Expansion calculator - Contraction calculator - Temperature de-rating calculator - Tools for plumbing professionals - Future tool additions planned ## Recent user reviews (10 of 11) All indexed reviews: https://appshunter.io/ios/app/cpf-techtools/id679297384/reviews.md ### 2/5 — Lame *2025-05-24, version 3.5.4* You open horizontal support spacing and there’s nothing for cast-iron. There’s no fittings configurator. Under solving and glues it only shows you compatible glues with one product. It does not show you. What glues to use when joining dissimilar products like ABS to PVC etc.. pretty much a completely useless app. ### 4/5 — Useful information but… *2022-12-08, version 3.3.4* I find the written content to be very useful but a glitch won’t allow me to view any of the videos. I get a pop up message saying I need to be connected to the internet even though I know I am. ### 3/5 — Good information *2022-02-15, version 3.3.2* The app is full of great information. It would be nice if it didn’t require an internet connection. After the last update the Home Screen is very hard to read. White text on a very light gray background is tough, especially outside. ### 5/5 — A plumber’s best friend *2018-06-19, version 3.2.5* Makes my job a lot easier having all of the fitting measurements in the palm of my hand. Thank you to Charlotte Pipe. ### 5/5 — Handy app *2017-10-14, version 3.1.2* Its worth having this free app for the cast iron dimensional catalog alone. ### 5/5 — Great app *2016-08-17, version 2.0.2* Very functional as well as helpful. ### 2/5 — Slow *2014-10-14, version 1.2.2* Like the idea of having dimensional info on hand at all time but app is way to slow to load. Would appreciate an update ### 5/5 — Fantastic App *2014-09-22, version 1.2.2* Fantastic app, very useful, very easy to use! ### 2/5 — CAST IRON FITTINGS *2014-07-26, version 1.1.1* You need to get the fitting takeoffs, if u don't this app is here for nothing....buuuuuuuuuuu ### 3/5 — Take offs *2014-06-04, version 1.1.1* How bout fitting take offs ## Frequently asked questions about CPF TechTools ### What tools does CPF TechTools offer? CPF TechTools provides an expansion calculator, a contraction calculator, and a temperature de-rating calculator. These tools are designed for professionals in the plumbing industry. ### Is CPF TechTools free to use? Yes, CPF TechTools is available for free. There are no in-app purchases or advertisements within the application. ### Who is the target audience for CPF TechTools? The app is intended for plumbing engineers, contractors, architects, and other professionals working within the plumbing industry. ### What devices support CPF TechTools? CPF TechTools is available on iPhone, iPad, and iPod devices. It is designed for mobile use by industry professionals. ### How often is CPF TechTools updated? The latest version, 3.5.5, was released on October 15, 2025. While specific update frequency isn't detailed, the app receives regular updates to add features and improve functionality. ### What is the user sentiment for CPF TechTools? Users have rated CPF TechTools highly, with an average of 4.5 stars from 22 ratings, indicating positive user sentiment towards its utility and features. ### Are there plans to add more features to CPF TechTools? Yes, the description states that additional tools will be added soon. This suggests ongoing development to expand the app's capabilities. ### What is the age rating for CPF TechTools? CPF TechTools has an age rating of 4+, making it suitable for a wide range of users, including younger professionals or students entering the industry. ## Version history (last 5 releases) ### 3.5.5 — 2025-10-15 Added the Cast Iron Dimensional Catalog for Canada ### 3.5.4 — 2024-09-10 New Calculator Updates ### 3.5.3 — 2024-08-21 App updates ### 3.5.2 — 2024-01-23 Expansion Calculator update. ### 3.5.1 — 2023-12-02 Enhancement updates ## Apps similar to CPF TechTools | App | Rating | Price | Category | | --- | --- | --- | --- | | [ISAQR](https://appshunter.io/ios/app/isaqr/id1203753432) | 2.0 (61) | Free | Business | | [Ferguson Mobile](https://appshunter.io/ios/app/ferguson-mobile/id1456087860) | 3.0 (68) | Free | Business | | [Easy Isometric: Pipe Iso App](https://appshunter.io/ios/app/easy-isometric-pipe-iso-app/id1463534058) | 2.6 (57) | Free | Business | | [ICC Digital Codes Premium](https://appshunter.io/ios/app/icc-digital-codes-premium/id1523315914) | 3.1 (15) | Free | Business | | [McCalc Fusion Calculator](https://appshunter.io/ios/app/mccalc-fusion-calculator/id376891708) | 3.4 (18) | Free | Business | | [UA 562](https://appshunter.io/ios/app/ua-562/id6747414842) | 4.9 (7) | Free | Business | ## Related topics [tech tools](https://appshunter.io/ios/topics/tech-tools) · [cpf techtools](https://appshunter.io/ios/topics/cpf-techtools) · [charlotte tech tools](https://appshunter.io/ios/topics/charlotte-tech-tools) · [charlotte pipe tech tools](https://appshunter.io/ios/topics/charlotte-pipe-tech-tools) · [tech tool](https://appshunter.io/ios/topics/tech-tool) · [pvc pipe](https://appshunter.io/ios/topics/pvc-pipe) · [charlotte](https://appshunter.io/ios/topics/charlotte) · [cfe tools](https://appshunter.io/ios/topics/cfe-tools) · [wade trim](https://appshunter.io/ios/topics/wade-trim) · [local 357](https://appshunter.io/ios/topics/local-357) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-07.*