# CircuitSense vs Calculation Transformers

The clearest difference is update cadence: CircuitSense at every 3 days against Calculation Transformers's every 5 months. On price, ads, in-app purchases 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 and Calculation Transformers sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CircuitSense ships an update every 3 days, Calculation Transformers every 5 months. The most recent releases landed on September 19, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | CircuitSense | Calculation Transformers |
| --- | --- | --- |
| 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 | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 37 MB | 56 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CircuitSense LLC](https://appshunter.io/developer/1850351250) | [Nanjibhai Gorasiya](https://appshunter.io/developer/1834066312) |

## What reviewers say

### 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 |


### Calculation Transformers

[App page](https://appshunter.io/ios/app/calculation-transformers/id6759037556)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $9.99 | one-time |


## Frequently asked questions

### Is CircuitSense free?

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

### Is Calculation Transformers free?

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

### Do CircuitSense or Calculation Transformers have ads?

Neither CircuitSense nor Calculation Transformers shows ads.

### Which is updated more often, CircuitSense or Calculation Transformers?

CircuitSense ships an update every 3 days, and Calculation Transformers every 5 months. Most recently, CircuitSense was updated on September 19, 2026 and Calculation Transformers on September 30, 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.*