# Prisma Mobile vs Electrical Calculations

The clearest difference is review sentiment: Electrical Calculations at 87% against Prisma Mobile's 18%. Electrical Calculations also leads on rating (4.6 vs 1.0) and ratings volume (126 vs 2). Prisma Mobile's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Electrical Calculations sells 3 in-app purchases, starting at $3.99 per 3 months. Prisma Mobile asks for nothing beyond the download.

Electrical Calculations holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Electrical Calculations has 126 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 18% of Prisma Mobile's written reviews are positive against 87% of Electrical Calculations's.

Prisma Mobile ships an update every 5 weeks, Electrical Calculations every 3 weeks. The most recent releases landed on June 5, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Prisma Mobile | Electrical Calculations |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/prisma-mobile/id936792224/reviews) | **[4.6 (126 ratings)](https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews)** |
| Number of ratings | 2 | **126** |
| Positive reviews | 18.2% of reviews | **86.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 35 MB | 56 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sisteplant S.L.](https://appshunter.io/developer/936792223) | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) |

## What reviewers say

### Prisma Mobile

[App page](https://appshunter.io/ios/app/prisma-mobile/id936792224)

This app provides organizations with easy access to their asset and equipment structures. It offers features for managing work orders, requests, materials, and supporting documentation, along with QR code scanning and risk management.

**Highlights:** Asset and equipment structure access, Work order and request management, Material and spare parts access, Image and documentation management, QR code reading, Risk and competency management, Online and offline functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### Electrical Calculations

[App page](https://appshunter.io/ios/app/electrical-calculations/id993232048)

This app provides a comprehensive suite of electrical calculations for professionals. It supports various international standards and offers detailed reports in PDF format. The tool covers wiring, power, motor, and electronic calculations, along with extensive conversion tables and resources.

**Highlights:** Wire size and voltage drop calculations, Power, current, and resistance calculations, Motor performance and connection diagrams, Electronic component calculations, Extensive unit conversions, PDF report generation, Support for IEC, CEI, NEC, CEC standards

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Version (3 months) | $3.99 | per 3 months |
| PRO Version (1 year) | $7.49 | per year |
| PRO Version (Lifetime) | $89.99 | one-time |


## Frequently asked questions

### Is Prisma Mobile free?

Prisma Mobile is free to download, with no in-app purchases.

### Is Electrical Calculations free?

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

### Which has better reviews, Prisma Mobile or Electrical Calculations?

Electrical Calculations is rated higher. Prisma Mobile averages 1.0 out of 5 from 2 ratings, while Electrical Calculations averages 4.6 from 126 ratings.

### Do Prisma Mobile or Electrical Calculations have ads?

Electrical Calculations shows ads; Prisma Mobile does not.

### Which is updated more often, Prisma Mobile or Electrical Calculations?

Prisma Mobile ships an update every 5 weeks, and Electrical Calculations every 3 weeks. Most recently, Prisma Mobile was updated on June 5, 2026 and Electrical Calculations on September 25, 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.*