# Power Calculator vs kVA Calculator

Power Calculator and kVA Calculator both sit at 4.5 stars, but that hides the real split: 81% of Power Calculator's written reviews are positive against 42% of kVA Calculator's. Power Calculator also leads on ads (none vs shown) and update cadence (every 2 months vs every 6 months). kVA Calculator's advantage is ratings volume (12 vs 2) and iOS requirement (15.0 vs 17.6). On price, rating, in-app purchases and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.5 for Power Calculator against 4.4 for kVA Calculator. That said, the two scores are not equally well evidenced: kVA Calculator has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 81% of Power Calculator's written reviews are positive against 42% of kVA Calculator's.

Power Calculator ships an update every 2 months, kVA Calculator every 6 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | Power Calculator | kVA Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/power-calculator/id454548791/reviews)** | [4.4 (12 ratings)](https://appshunter.io/ios/app/kva-calculator/id467407057/reviews) |
| Number of ratings | 2 | **12** |
| Positive reviews | **81.0% of reviews** | 41.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | **Free** | Ad-supported |
| Size | 2 MB | 10 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Power Continuity Limited](https://appshunter.io/developer/454548794) | [Pro Certs Software Ltd](https://appshunter.io/developer/444429696) |

## What reviewers say

### Power Calculator

[App page](https://appshunter.io/ios/app/power-calculator/id454548791)

This app provides a straightforward calculator designed for the electrical industry, offering tools for power and lighting calculations. It helps users determine generator and UPS requirements, convert units, and calculate fuel consumption. Suitable for both professionals and casual users needing electrical calculations.

**Highlights:** KW, kVA, and Amps calculation, Generator requirements calculation (single/three phase), UPS requirements calculation (single/three phase), Lumens and Watts conversion, Generator fuel consumption calculation, Generator power calculation

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Power Calculator free?

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

### Is kVA Calculator free?

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

### Which has better reviews, Power Calculator or kVA Calculator?

Power Calculator is rated higher. Power Calculator averages 4.5 out of 5 from 2 ratings, while kVA Calculator averages 4.4 from 12 ratings.

### Do Power Calculator or kVA Calculator have ads?

kVA Calculator shows ads; Power Calculator does not.

### Which is updated more often, Power Calculator or kVA Calculator?

Power Calculator ships an update every 2 months, and kVA Calculator every 6 months. Most recently, Power Calculator was updated on November 6, 2026 and kVA Calculator on November 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.*