# Transformer Pie — Transformer Calculations > Transformer calculation tool for engineers, offering quick and detailed analysis. (iPhone/iPad app by Pork Pie Software Limited.) - Source: https://appshunter.io/ios/app/transformer-pie/id1086416606 (this page in markdown: same URL + `.md`) - Developer: [Pork Pie Software Limited](https://appshunter.io/developer/1086416605) - Category: Productivity, Education - Price: $3.99 - Rating: 2.60/5 from 5 App Store ratings - Age rating: 4+ - Requires: iOS 12.0 · 12 MB - Languages: English - Released: 2016-02-25 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/transformer-pie/id1086416606/reviews.md ## What is Transformer Pie? Transformer calculations 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. Transformer Pie calculates the full load currents and short circuit parameters of transformers. The App has two calculation features, these being a simplified ‘Quick Calculation’ and a more comprehensive ‘Detailed Calculation’. Quick Calculation: The ‘Quick Calculation’ feature provides the following outputs: - Short Circuit Current kA - Secondary Full Load Current Amps - Ohmic Impedance - MVA Fault Power Detailed Calculation: The ‘Detailed Calculation’ feature provides the following outputs: - Ohmic Impedance - Primary Full Load Current - Secondary Full Load Current - Secondary Short Circuit MVA - Three Phase Symmetrical Short Circuit - Phase to Phase Short Circuit - Phase to Earth Short Circuit - Upstream Network Impedance - Upstream Network Impedance referred to Secondary Voltage Parallel Operation Data: - Primary Full Load Current - Secondary Full Load Current - Three Phase Symmetrical Short Circuit - Phase to Phase Short Circuit - Phase to Earth Short Circuit “Written by Engineers for Engineers” 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 - Quick Calculation for transformers - Detailed Calculation for transformers - Parallel Operation Data - Short Circuit Current (kA) - Full Load Current (Amps) - Ohmic Impedance - MVA Fault Power ## Frequently asked questions about Transformer Pie ### What kind of calculations does Transformer Pie perform? Transformer Pie calculates full load currents and short circuit parameters for transformers. It offers both a simplified 'Quick Calculation' and a more comprehensive 'Detailed Calculation' feature. ### Can Transformer Pie help me understand the theory behind the calculations? Yes, Transformer Pie provides the underlying maths and theory behind the calculations, along with worked examples. This aims to help users understand how the answers are derived, not just get the result. ### What specific outputs are available in the Detailed Calculation mode? The Detailed Calculation mode provides Ohmic Impedance, Primary and Secondary Full Load Current, Secondary Short Circuit MVA, Three Phase Symmetrical Short Circuit, Phase to Phase Short Circuit, Phase to Earth Short Circuit, and upstream network impedance. ### Does Transformer Pie offer features for parallel operation? Yes, Transformer Pie includes data for parallel operation, such as Primary and Secondary Full Load Current, and various short circuit calculations (Three Phase Symmetrical, Phase to Phase, and Phase to Earth). ### How often is Transformer Pie updated? The latest version available is 2.1.4, last updated on June 22, 2020. The developers state they can quickly update and improve apps based on user feedback. ### What devices is Transformer Pie compatible with? Transformer Pie is available for iPhone, iPad, and iPod. It is designed for iOS devices. ### What is the price of Transformer Pie? Transformer Pie is a paid application, priced at $3.99. ### What is the user sentiment for Transformer Pie based on ratings? Transformer Pie has a rating of 2.6 stars from 5 ratings, indicating a mixed to negative user reception. ## Version history (last 1 release) ### 2.1.4 — 2020-06-22 Thanks for using our Transformer Pie app. We’re constantly improving this app in conjunction with your feedback to make this app even better. This update includes: - Minor update to splash screen to correct text colour. If you like the app, please leave us a review! “Written by Engineers for Engineers” ## Apps similar to Transformer Pie | App | Rating | Price | Category | | --- | --- | --- | --- | | [Fraction Calculator PRO #1](https://appshunter.io/ios/app/fraction-calculator-pro-1/id504494723) | 4.9 (752) | $3.99 | Productivity | | [Safe + Password Manager](https://appshunter.io/ios/app/safe-plus-password-manager/id839529762) | 4.6 (289) | $2.99 | Productivity | | [InstElectric - Electricity](https://appshunter.io/ios/app/instelectric-electricity/id1447422315) | 4.3 (3) | Free | Productivity | | [Fault Current Calculator](https://appshunter.io/ios/app/fault-current-calculator/id577611194) | 1.0 (2) | $0.99 | Productivity | | [Electronics Engineer Helper](https://appshunter.io/ios/app/electronics-engineer-helper/id896429646) | 4.8 (427) | Free | Productivity | | [AI Chat Assistant – ChatNow](https://appshunter.io/ios/app/ai-chat-assistant-chatnow/id1667518571) | 4.8 (132,670) | Free | Productivity | ## More apps by Pork Pie Software Limited - [Penetration Pie](https://appshunter.io/ios/app/penetration-pie/id1108389269) - [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.*