AppCorpus
Market GB

Fault Current Calculator

by Cooper Bussmann, LLC

iPhone · iPad

Active Last checked 7 Aug 2026

Quick verdict

What it is
Store information collected; independent summary not yet available.
At a glance
  • From $4.99/mo
  • Free to download
  • In-app purchases

Categories and search queries

Official categories

AppCorpus categories

Key functions

Function Availability Access Scope Evidence
Free app Yes Free Store published
In-app purchases Yes Limited free Store published

Screens

App Store

27 store screenshots

Fault Current Calculator ipad screenshot 1
Fault Current Calculator ipad screenshot 2
Fault Current Calculator ipad screenshot 3
Fault Current Calculator ipad screenshot 4

Pricing & paywalls

App Store

Shown for US

  • Pro Monthly Subscription — $4.99/month
  • Pro Monthly Subscription — $39.99/year ($3.33/mo)

Ratings & reviews

App Store

Shown for US

3.0 26 ratings · App Store

  1. 3/5Amazing app with two (significant) flaws

    This app is free, and saves an incredible amount of time. It would garner 5 stars, except for two significant flaws: Firstly, you can only map one branch at a time, which means mapping a system with multiple branches requires you to restart for each branch. Secondly, and most importantly, hitting the home button completely resets your progress. This makes the app almost unusable; if you stop to take a call or text, you have to start over. If this glaring issue was fixed, 4-5 stars would be warranted. On the other hand, this app also exists on Bussmann’s website, without this issue. For the time being, I recommend using the app there.

    Norms sutton · 7 Aug 2026

  2. 3/5Two issues

    Will not allow selection of 10kVA transformer. Will not email labels with iOS 12. For my use, these are small problems that if fixed would garner the app 5 stars from me.

    OBX tek · 7 Aug 2026

  3. 2/5Basically it’s a label creator

    Basically it’s a label creator, kinda silly and poorly designed.

    Mr.Picky · 7 Aug 2026

  4. 1/5Could be 5 star

    This app secretly updated itself to a pro version which I am not paying for. I can no longer download the standard version.

    jtoverka · 7 Aug 2026

  5. 1/5Stuck in update

    Used to work great- forced to pay for the upgraded version that doesn’t work. Its stuck in the spinning wheel of updating

    Tommyhuts · 7 Aug 2026

Privacy & accessibility

App Store

Privacy

  • Data Not Collected Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

  • 1.0.3
  • 1.1.0

    - Fixed issue with user guide and fuse sizing guide.

  • 1.2.0

    - Minor fixes to UI issues found - Modification made to motor contribution calculation (motor contribution now choked at each additional transformer).

  • 1.3.0

    VERSION 1.3.0 - Added JPEG label creation feature and updated label designs (better-optimized for label printers) - Fixed 1000kcmil conductor run bug - Updated fuse sizing guide errors. - Added system sub-header button for easy access back to system diagram

  • 1.5.0

    VERSION 1.5.0 NOTES - update user interface - added French & Spanish translations - fixed number input bugs

  • 1.5.1

    VERSION 1.5.0 NOTES - update user interface - added French & Spanish translations - fixed number input bugs

  • 4.1.1

    - Design changes to accommodate new devices and OS versions.

  • 4.1.2

    Updated language translation.

  • 4.1.3

    Updated the fuse sizing and user guide functions.

  • 4.1.4

    Updated user interface.

  • 4.1.6

    User experience enhancements and bug fixes.

  • 4.2.0

    Users now have two options to choose from, the Standard or Pro version. The Standard version is free for all users and provides essential tools and functionalities, including: - Create one-line diagrams - Perform basic fault current calculations - Send calculations to the registered email only - Generate up to 4 PDF files of available fault current calculations per day - Handle transformer sizes up to 5 MVA For a more comprehensive solution, the Pro version offers everything in the standard version plus advance features including: - Send calculations to ANY email address - Generate UNLIMITED PDF file of available fault current calculations - Handle transformer sizes up to 10 MVA - Save and edit diagrams - Edit and mange projects - Simplified component modification to add, delete, and edit components - Add generator to the system - Set default transformer value (from previous selection) for a quick selection - Add motor contributions for single phase system - Consolidate multiple project calculations in a single email

  • 4.2.1 · 17 Sep 2025

    We’ve made several behind-the-scenes improvements to enhance the user experience: - Smoother navigation for a streamlined sign-up process - Minor bug fixes to keep things running reliably - Small design tweaks for a cleaner, more intuitive interface Update now to enjoy a more seamless FC2 experience!

Alternatives

Availability by market

Data quality & evidence

Page completeness
Live store listing
Last verified
7 Aug 2026
Sources
App Store

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