# Circuit Calc Pro

> Electrical reference and calculator for Ohm's Law, power, and circuit formulas. (iPhone/iPad app by Timothy Gleason.)

- Source: https://appshunter.io/ios/app/circuit-calc-pro/id570694022 (this page in markdown: same URL + `.md`)
- Developer: [Timothy Gleason](https://appshunter.io/developer/548419827)
- Category: Reference, Productivity
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.3 · 20 MB
- Languages: English
- Released: 2012-10-24
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/circuit-calc-pro/id570694022/reviews.md

## What is Circuit Calc Pro?

This app is great for anyone who needs an easy electrical reference and electrical calculator to get the job done.  This app is very easy to use, with a simple user interface!  If you loved either CircuitCalc or Resistors Code, then you will love this app too!  Features:

Ohm's Law
Power Triangle
DC Formulas
AC Formulas
Resistors
Capacitive Reactance
Inductive Reactance
Three Phase Calculations
Y to Delta Conversion
Delta to Y Conversion
Inverting Op Amp Calculation
Negative Feedback Op Amp Calculation
Voltage Divider
Current Divider
Info and Contact
Buffer Op Amp
Summing Op Amp
Differential Op Amp

Let us know what you think, we are constantly working on improvements and new features!  Tell all your friends!

## Key features

- Ohm's Law calculator
- Power Triangle calculations
- DC and AC Formulas
- Resistor calculations
- Capacitive and Inductive Reactance
- Three Phase Calculations
- Op Amp calculations

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/circuit-calc-pro/id570694022/reviews.md

### 5/5 — Review

*2018-11-23, version 3.3*

Great APP! 

HOF13104258

### 5/5 — Handy tool that's easy to use!

*2017-07-06, version 3.0*

Simple user interface makes it quick, easy, and intuitive. Covers all the bases for the most common power and circuit calculations.

### 3/5 — Good app

*2016-09-22, version 2.1*

This app is very useful for calculating various things with circuits but one thing I would like to see added would be a parallel resistance calculator

### 5/5 — Great app for quick calculations

*2013-08-28, version 1.5*

Via Dan Woodard

### 5/5 — Review

*2012-11-08, version 1.1*

Great all purpose tool

## Frequently asked questions about Circuit Calc Pro

### What electrical formulas does Circuit Calc Pro offer?

Circuit Calc Pro offers a wide range of formulas including Ohm's Law, the Power Triangle, DC and AC formulas, calculations for resistors, capacitive and inductive reactance, three-phase circuits, and various operational amplifier configurations.

### Is Circuit Calc Pro available on Android devices?

Based on the provided data, Circuit Calc Pro is available on iPhone, iPad, and iPod. Information regarding Android compatibility is not specified.

### How frequently is Circuit Calc Pro updated?

The latest version of Circuit Calc Pro is 3.3, which was last updated on January 28, 2018. This indicates the app has not received updates in several years.

### What is the age rating for Circuit Calc Pro?

Circuit Calc Pro has an age rating of 4+, making it suitable for a wide range of users.

### What do users like about Circuit Calc Pro?

Users have rated Circuit Calc Pro highly, with an average of 5.0 stars from 2 ratings. The app is described as great for electrical reference and easy to use with a simple user interface.

### Does Circuit Calc Pro have ads?

The provided data does not specify whether Circuit Calc Pro contains advertisements. However, it is listed as free with no in-app purchases.

### What is the price of Circuit Calc Pro?

Circuit Calc Pro is available for free, with no in-app purchases indicated in the provided data.

### Who developed Circuit Calc Pro?

Circuit Calc Pro was developed by Timothy Gleason.

## Version history (last 1 release)

### 3.3 — 2018-01-28

This app has been updated by Apple to display the Apple Watch app icon.

- UI fixes
- Bug fixes

## Apps similar to Circuit Calc Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Mini-Circuits RF Calculator](https://appshunter.io/ios/app/mini-circuits-rf-calculator/id1003935816) | 5.0 (3) | Free | Reference |
| [Perfboard](https://appshunter.io/ios/app/perfboard/id465951871) | 5.0 (6) | Free | Reference |

## More apps by Timothy Gleason

- [CircuitCalc](https://appshunter.io/ios/app/circuitcalc/id548419824)
- [Resistors Code](https://appshunter.io/ios/app/resistors-code/id560905844)
- [CircuitCalc Power](https://appshunter.io/ios/app/circuitcalc-power/id1342204836)
- [Itchy Plant](https://appshunter.io/ios/app/itchy-plant/id1442929063)

All apps by Timothy Gleason: https://appshunter.io/developer/548419827

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*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.*