# Penetration Pie — Circle packing is fun! > Circle packing calculator for fitting conduits into openings. (iPhone/iPad app by Pork Pie Software Limited.) - Source: https://appshunter.io/ios/app/penetration-pie/id1108389269 (this page in markdown: same URL + `.md`) - Developer: [Pork Pie Software Limited](https://appshunter.io/developer/1086416605) - Category: Education, Productivity - Price: $2.99 - Rating: 3.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 11 MB - Languages: English - Released: 2016-04-30 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/penetration-pie/id1108389269/reviews.md ## What is Penetration Pie? How Many Cables, Conduits or Pipes can you fit in a Penetration made easy! As with all our Apps this App provides the underlying maths and theory behind the calculations together with worked examples. This will allow you to not just get an answer, but more more importantly, to understand how the answer was derived. This App effectively provides a ‘circle packing’ algorithm for ‘circles within a circle’ or ‘circles within a rectangle’. The real world application of this allows you to ascertain how many cables, conduits or pipes etc you can get through a given penetration. The penetration can either be a ‘circular penetration’ such as a round penetration through a beam or floor slab, or a ‘rectangular penetration’ such as a slot within a concrete wall or floor slab. All the items passing through the penetration need to be of the same outside diameter, or otherwise use the diameter of the largest item. Circular Penetration: Upon providing the penetration diameter and cable, conduit or pipe diameter the estimated amount of cables, conduits or pipes that can fit through the given penetration is calculated and displayed. Should the number of conduits be less than 10,000 then the option is available to ‘Draw’ and see the configuration of cables, conduits or pipes within the penetration. Rectangular Penetration: Upon providing the penetration width, height and cable, conduit or pipe diameter the estimated amount of cables, conduits or pipes that can fit through the given penetration is calculated and displayed with cables, conduits or pipes configured in both a matrix and staggered configuration. Should the number of cables, conduits or pipes be less than 10,000 then the option is available to ‘Draw’ each conduit configuration and see the configuration of conduits within the penetration. “Written by Engineers for Engineer” About Pork Pie Software: Pork Pie Software is a mobile app development company based in New Zealand. Our apps are actually written and coded by real engineers that practice in the engineering area that each app is written in. All feedback and suggestions are genuinely welcome. As we write our own apps we can quickly update and improve our apps based on your feedback. Find out more at: http://www.porkpiesoftware.com Contact us by Email:
 contact@porkpiesoftware.com Like us on Facebook: https://www.facebook.com/PorkPieSoftware Follow us on Twitter: https://twitter.com/PorkPieSoftware Watch us on Youtube: https://www.youtube.com/c/PorkpiesoftwareKiwi ## Key features - Circle packing algorithm - Circular penetration calculations - Rectangular penetration calculations - Matrix and staggered configurations - Visual drawing of configurations - Underlying math and theory ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/penetration-pie/id1108389269/reviews.md ### 3/5 — Ok I’m on my way to the office now *2021-03-15, version 2.3.1* Ok ## Frequently asked questions about Penetration Pie ### What is Penetration Pie used for? Penetration Pie is an app designed to help engineers calculate how many cables, conduits, or pipes of the same diameter can fit into a given circular or rectangular opening. It provides the mathematical basis for these calculations. ### Can Penetration Pie show me how the pipes fit? Yes, if the calculated number of conduits is less than 10,000, Penetration Pie offers an option to 'Draw' and visualize the configuration of cables, conduits, or pipes within the penetration for both circular and rectangular openings. ### What types of penetrations does Penetration Pie support? Penetration Pie supports calculations for both circular penetrations, such as round openings in beams or floor slabs, and rectangular penetrations, like slots in concrete walls or floors. ### How does Penetration Pie handle different pipe sizes? The app assumes all items passing through the penetration are of the same outside diameter. If they are not, you should use the diameter of the largest item for your calculations. ### What platforms is Penetration Pie available on? Penetration Pie is available for iPhone, iPad, and iPod touch devices. It was developed by Pork Pie Software Limited. ### How often is Penetration Pie updated? The latest version, 2.3.1, was released on June 21, 2020. The developer, Pork Pie Software, states they can quickly update and improve apps based on user feedback. ### What is the cost of Penetration Pie? Penetration Pie is a paid application, priced at $2.99. It does not appear to have any in-app purchases or advertisements. ### What is the age rating for Penetration Pie? Penetration Pie has an age rating of 4+, making it suitable for a wide range of users. The app is developed by engineers for engineers. ## Version history (last 1 release) ### 2.3.1 — 2020-06-21 Thanks for using our Penetration Pie app. We’re constantly improving this app in conjunction with your feedback to make this app even better. This update includes: - Restored the status bar text colour to white. - Modified code to make sure the reset value are stored straight away. If you like the app, please leave us a review! “Written by Engineers for Engineers” ## Apps similar to Penetration Pie | App | Rating | Price | Category | | --- | --- | --- | --- | | [Practice German Speaking](https://appshunter.io/ios/app/practice-german-speaking/id1663628060) | 4.6 (42) | Free | Education | | [Initiationen](https://appshunter.io/ios/app/initiationen/id6443526080) | — | Free | Education | | [AKE Teacher](https://appshunter.io/ios/app/ake-teacher/id1673653860) | — | Free | Education | | [Memorization:Spaced Repetition](https://appshunter.io/ios/app/memorizationspaced-repetition/id6443955900) | — | Free | Education | | [OCTO Flashcards](https://appshunter.io/ios/app/octo-flashcards/id1664003220) | 2.6 (16) | Free | Education | | [Scaleup](https://appshunter.io/ios/app/scaleup/id6443414120) | — | Free | Education | ## More apps by Pork Pie Software Limited - [Transformer Pie](https://appshunter.io/ios/app/transformer-pie/id1086416606) - [Escalator Pie](https://appshunter.io/ios/app/escalator-pie/id1132803906) - [Lift Pie](https://appshunter.io/ios/app/lift-pie/id1192168390) - [Power Factor Pie](https://appshunter.io/ios/app/power-factor-pie/id1200023399) - [Acoustic Pie](https://appshunter.io/ios/app/acoustic-pie/id1225024561) All apps by Pork Pie Software Limited: https://appshunter.io/developer/1086416605 --- *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 2026-06-10.*