# Circuit Wizard vs SIMpull 600V Calculator

The clearest difference is rating: SIMpull 600V Calculator at 4.2 against Circuit Wizard's 3.1. SIMpull 600V Calculator also leads on review sentiment (75% vs 40%) and update cadence (every 3 months vs every 12 months). Circuit Wizard's advantage is iOS requirement (7.1 vs 16.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SIMpull 600V Calculator holds the better App Store score, 4.2 against 3.1. Both are backed by a comparable volume of ratings — 19 and 59 respectively. Written reviews point the same way: 40% of Circuit Wizard's written reviews are positive against 75% of SIMpull 600V Calculator's.

Circuit Wizard ships an update every 12 months, SIMpull 600V Calculator every 3 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | Circuit Wizard | SIMpull 600V Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (19 ratings)](https://appshunter.io/ios/app/circuit-wizard/id576865083/reviews) | **[4.2 (59 ratings)](https://appshunter.io/ios/app/simpull-600v-calculator/id682524729/reviews)** |
| Number of ratings | 19 | **59** |
| Positive reviews | 40.0% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 4 MB | 12 MB |
| Requires iOS | **7.1** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Blue Sea Systems, Inc.](https://appshunter.io/developer/576865086) | [Southwire Company](https://appshunter.io/developer/440338423) |

## What reviewers say

### Circuit Wizard

[App page](https://appshunter.io/ios/app/circuit-wizard/id576865083)

This app assists electricians and enthusiasts in calculating wire sizes for installations based on ABYC and Blue Sea Systems specifications. It also helps find suitable protective products for circuits. The application functions completely offline.

**Highlights:** Wire sizing calculation, ABYC and Blue Sea Systems specifications, Product search for circuit protection, Offline functionality, Electrical installation reference

**Features:** macOS Compatibility

**In-app purchases:** none


### SIMpull 600V Calculator

[App page](https://appshunter.io/ios/app/simpull-600v-calculator/id682524729)

This app offers multiple calculators for electrical calculations, all linked by wire pull characteristics. It generates NEC® compliant answers for voltage drop, ground wire sizing, ampacity adjustments, and more. Results can be easily emailed.

**Highlights:** Voltage Drop Calculator, Ground Wire Sizing, Ampacity Adjustments, Phase Wire Attributes, Sidewall Tension/Pressure, Reel Sizing, NEC® Compliant Answers, Email Results

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Circuit Wizard free?

Circuit Wizard is free to download, with no in-app purchases.

### Is SIMpull 600V Calculator free?

SIMpull 600V Calculator is free to download, with no in-app purchases.

### Which has better reviews, Circuit Wizard or SIMpull 600V Calculator?

SIMpull 600V Calculator is rated higher. Circuit Wizard averages 3.1 out of 5 from 19 ratings, while SIMpull 600V Calculator averages 4.2 from 59 ratings.

### Do Circuit Wizard or SIMpull 600V Calculator have ads?

Neither Circuit Wizard nor SIMpull 600V Calculator shows ads.

### Which is updated more often, Circuit Wizard or SIMpull 600V Calculator?

Circuit Wizard ships an update every 12 months, and SIMpull 600V Calculator every 3 months. Most recently, Circuit Wizard was updated on October 23, 2026 and SIMpull 600V Calculator on October 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*