# Voltage Drop Calculator. vs CircKit

The clearest difference is review sentiment: CircKit at 79% against Voltage Drop Calculator.'s 33%. CircKit also leads on ads (none vs shown) and update cadence (weekly vs every 3 months). Voltage Drop Calculator.'s advantage is monetization model (free with in-app purchases vs paid). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Voltage Drop Calculator. sells 1 one-off in-app purchase and CircKit sells 9 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Voltage Drop Calculator. ships an update every 3 months, CircKit weekly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Voltage Drop Calculator. | CircKit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (413 ratings)](https://appshunter.io/ios/app/voltage-drop-calculator/id1203737064/reviews)** | — |
| Number of ratings | **413** | — |
| Positive reviews | 33.3% of reviews | **78.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 51 MB | 50 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [The Sparky](https://appshunter.io/developer/1747077864) |

## What reviewers say

### Voltage Drop Calculator.

[App page](https://appshunter.io/ios/app/voltage-drop-calculator/id1203737064)

Calculate voltage drop and wire size using both NEC and IEC standards. Supports various load types, conductor materials, and system configurations. Generates detailed reports for electricians, engineers, and contractors.

**Highlights:** NEC and IEC dual standards, Voltage drop and wire sizing calculations, Support for continuous load and corrections, Copper or Aluminum conductor options, Single-phase and three-phase systems, Automatic compliance checks, PDF report generation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Go Pro | $4.99 | one-time |


### CircKit

[App page](https://appshunter.io/ios/app/circkit/id6612010334)

This app provides essential electrical calculations and reference tools for electricians, contractors, and engineers. It offers advanced calculators for motor sizing, voltage drop, and more, alongside a professional reference library and built-in productivity tools.

**Highlights:** Motor sizing and protection calculators, Voltage drop calculator, Transformer sizing, Pipe and box fill calculators, Professional reference library, Integrated notes app, Unit converter

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $14.99 | per year |
| 14 Day Trial | Free | one-time |
| $1 Tip | $0.99 | one-time |
| $5 Tip | $4.99 | one-time |
| $10 Tip | $9.99 | one-time |
| $20 Tip | $19.99 | one-time |
| Discounted Lifetime | $22.99 | one-time |
| Lifetime Access | $39.99 | one-time |


## Frequently asked questions

### Is Voltage Drop Calculator. free?

Voltage Drop Calculator. is free to download, with in-app purchases available.

### Is CircKit free?

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

### Do Voltage Drop Calculator. or CircKit have ads?

Voltage Drop Calculator. shows ads; CircKit does not.

### Which is updated more often, Voltage Drop Calculator. or CircKit?

Voltage Drop Calculator. ships an update every 3 months, and CircKit weekly. Most recently, Voltage Drop Calculator. was updated on October 23, 2026 and CircKit on October 24, 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.*