# kVA Calculator vs Voltage Drop Calculator.

The clearest difference is in-app purchases: kVA Calculator at none against Voltage Drop Calculator.'s 1. kVA Calculator also leads on review sentiment (42% vs 33%) and iOS requirement (15.0 vs 17.6). Voltage Drop Calculator.'s advantage is ratings volume (414 vs 12) and update cadence (every 3 months vs every 6 months). On price, rating, ads and device support there is nothing between them.

Both are free to download. Voltage Drop Calculator. sells 1 one-off in-app purchase. kVA Calculator asks for nothing beyond the download.

Voltage Drop Calculator. holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Voltage Drop Calculator. has 414 ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 42% of kVA Calculator's written reviews are positive against 33% of Voltage Drop Calculator.'s, so the app with the better star average is not the one people write more warmly about.

kVA Calculator ships an update every 6 months, Voltage Drop Calculator. every 3 months. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | kVA Calculator | Voltage Drop Calculator. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (12 ratings)](https://appshunter.io/ios/app/kva-calculator/id467407057/reviews) | **[4.6 (414 ratings)](https://appshunter.io/ios/app/voltage-drop-calculator/id1203737064/reviews)** |
| Number of ratings | 12 | **414** |
| Positive reviews | **41.7% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 10 MB | 51 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pro Certs Software Ltd](https://appshunter.io/developer/444429696) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## What reviewers say

### kVA Calculator

[App page](https://appshunter.io/ios/app/kva-calculator/id467407057)

Easily calculate and convert electrical values like kVA, kW, Amps, Volts, and Power Factor. Supports both single and three-phase calculations for engineers working with power systems.

**Highlights:** Calculate kVA, kW, Amps, Volts, Power Factor, Single Phase Calculations, Three Phase Calculations, Convert between electrical units, Intuitive input for two values to find the third

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is kVA Calculator free?

kVA Calculator is free to download, with no in-app purchases.

### Is Voltage Drop Calculator. free?

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

### Which has better reviews, kVA Calculator or Voltage Drop Calculator.?

Voltage Drop Calculator. is rated higher. kVA Calculator averages 4.4 out of 5 from 12 ratings, while Voltage Drop Calculator. averages 4.6 from 414 ratings.

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

Both kVA Calculator and Voltage Drop Calculator. show ads.

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

kVA Calculator ships an update every 6 months, and Voltage Drop Calculator. every 3 months. Most recently, kVA Calculator was updated on November 6, 2026 and Voltage Drop Calculator. on November 9, 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.*