# Power Calculator vs Pypley

The clearest difference is price: Power Calculator at Free against Pypley's $2.99. Power Calculator also leads on rating (4.5 vs 1.0). Pypley's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (13.0 vs 17.6). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Power Calculator is free to download; Pypley costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Power Calculator holds the better App Store score, 4.5 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 84% and 83% positive.

Power Calculator ships an update every 2 months, Pypley every 3 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Power Calculator | Pypley |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/power-calculator/id454548791/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/pypley/id1540444278/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **84.2% of reviews** | 83.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 2 MB | 4 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Power Continuity Limited](https://appshunter.io/developer/454548794) | [Ali Mohammed](https://appshunter.io/developer/1540444280) |

## 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


### Pypley

[App page](https://appshunter.io/ios/app/pypley/id1540444278)

This app calculates flow rate, pressure drop, and pump performance for circular pipe systems. It supports custom pumps and fittings, and allows for unit conversions between Metric and US Imperial. Ideal for hydraulic and process engineers for early-stage design and quick estimations.

**Highlights:** Flow rate and pressure drop calculation, Customizable pump and fitting database, Metric/Imperial unit conversion, Pump performance curve plotting, Cavitation risk assessment (NPSH), Reynolds number and friction factor calculation

**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 Pypley free?

Pypley costs $2.99, with no in-app purchases.

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

Power Calculator is rated higher. Power Calculator averages 4.5 out of 5 from 2 ratings, while Pypley averages 1.0 from 1 ratings.

### Do Power Calculator or Pypley have ads?

Neither Power Calculator nor Pypley shows ads.

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

Power Calculator ships an update every 2 months, and Pypley every 3 weeks. Most recently, Power Calculator was updated on October 24, 2026 and Pypley on October 20, 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.*