# NEMA Guide vs CircuitSense

The clearest difference is in-app purchases: NEMA Guide at none against CircuitSense's 2. CircuitSense's advantage is iOS requirement (13.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CircuitSense sells 2 in-app purchases, starting at $9.99 per month. NEMA Guide asks for nothing beyond the download.

NEMA Guide ships an update every 2 days, CircuitSense every 3 days. The most recent releases landed on October 1, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | NEMA Guide | CircuitSense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/circuitsense/id6755273867/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 23 MB | 37 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Red Zepp LLC](https://appshunter.io/developer/1812216821) | [CircuitSense LLC](https://appshunter.io/developer/1850351250) |

## What reviewers say

### NEMA Guide

[App page](https://appshunter.io/ios/app/nema-guide/id6746103301)

**Features:** macOS Compatibility

**In-app purchases:** none


### CircuitSense

[App page](https://appshunter.io/ios/app/circuitsense/id6755273867)

This app automates complex electrical calculations for electricians, including conduit sizing, conductor ampacity, and voltage drop, based on the 2026 NEC. It provides detailed explanations for each result and organizes calculations by project for easy access and professional output sharing.

**Highlights:** Automated conduit and conductor sizing, Voltage drop and derating calculations, Box fill and pull box sizing, Load calculations for various building types, Fault current and transformer sizing, Conduit bending and panel phasing tools, Offline functionality

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CircuitSense Pro | $9.99 | per month |
| CircuitSense Pro | $79.99 | per year |


## Frequently asked questions

### Is NEMA Guide free?

NEMA Guide is free to download, with no in-app purchases.

### Is CircuitSense free?

CircuitSense is free to download, with in-app purchases available.

### Do NEMA Guide or CircuitSense have ads?

Neither NEMA Guide nor CircuitSense shows ads.

### Which is updated more often, NEMA Guide or CircuitSense?

NEMA Guide ships an update every 2 days, and CircuitSense every 3 days. Most recently, NEMA Guide was updated on October 1, 2026 and CircuitSense on October 6, 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.*