Features & Capabilities

Electrical Pro Tools

Phase Calc for iOS is an advanced engineering app for most electrical designs, expecially symmetrical component analysis and three-phase power system calculations. Built for students, teachers, technicians, and engineers, it combines a polished mobile experience with a powerful technical workflow for fast, accurate analysis of unbalanced three-phase systems in the field, lab, or classroom.

The app performs both phase-to-sequence and sequence-to-phase transformations, with support for inputs in polar and rectangular form. It quickly resolves three unbalanced phase quantities into their positive-, negative-, and zero-sequence components, making it a practical tool for protection studies, fault analysis, system modeling, relay validation, and coursework.

More than a single-purpose calculator, Phase Calc is packed with specialized calculators, technical reference libraries, and built-in formulas to support everyday power systems work. Whether you are checking values, reviewing theory, or working through engineering problems more efficiently, the app puts essential tools in one place.

Results can be exported instantly, including vector data for plotting and graphical analysis, as well as technical report exports for documentation, review, and sharing. With powerful capabilities in a streamlined interface, Phase Calc delivers a complete mobile toolkit for three-phase analysis on iPhone and iPad.

User Growth & Download Statistics

App
By:
Donnie Herman
Version:
2.0.0 Last updated: 2026-03-12
Version code:
883139790
Creation date:
2014-05-24
Compatible devices:
Size:
12.75MB
Price:
15
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-10
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Donnie Herman
Apple Apps Store
https://apps.apple.com/cn/app/phase-calc/id837266300?l=en-GB
Website:
https://sites.google.com/view/ios-apps/home

User Reviews

I test transmission line relays and this app really helps me to quickly calculate my zero sequence values when testing a ground fault relay.
by Tj*****, 2017-06-29

A great tool for anyone doing 3 phase and for the electrical student learning as well!!! Great job!!!!!! Can't wait to see what's next!!!
by JL*****, 2014-05-26

Works great! Thank you !
by Am*****, 2014-05-25
View all user reviews ›

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