# Electrical Calculations vs my Installed Base

The clearest difference is in-app purchases: my Installed Base at none against Electrical Calculations's 3. my Installed Base also leads on ads (none vs shown) and rating (5.0 vs 4.6). Electrical Calculations's advantage is ratings volume (126 vs 1) and update cadence (every 3 weeks vs every 4 months). On price, device support and iOS requirement there is nothing between them.

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

my Installed Base holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Electrical Calculations has 126 ratings behind it against 1, so its average is the more settled of the two.

Electrical Calculations ships an update every 3 weeks, my Installed Base every 4 months. The most recent releases landed on September 22, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Electrical Calculations | my Installed Base |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (126 ratings)](https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/my-installed-base/id1211294309/reviews)** |
| Number of ratings | **126** | 1 |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 56 MB | 135 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) | [ABB Information Systems AG](https://appshunter.io/developer/1026885389) |

## What reviewers say

### 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 |


### my Installed Base

[App page](https://appshunter.io/ios/app/my-installed-base/id1211294309)

This application allows ABB customers, authenticated user groups, and employees to register and manage their ABB equipment. Users can scan QR codes to add products, submit service requests, explore registered items, and access product information. It provides interactive management of ABB products and sites directly from a mobile device.

**Highlights:** Register ABB products via QR code scanning, Add product service requests, Explore registered products and sites, Access product information, Manage installation structures, Contact ABB support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Calculations free?

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

### Is my Installed Base free?

my Installed Base is free to download, with no in-app purchases.

### Which has better reviews, Electrical Calculations or my Installed Base?

my Installed Base is rated higher. Electrical Calculations averages 4.6 out of 5 from 126 ratings, while my Installed Base averages 5.0 from 1 ratings.

### Do Electrical Calculations or my Installed Base have ads?

Electrical Calculations shows ads; my Installed Base does not.

### Which is updated more often, Electrical Calculations or my Installed Base?

Electrical Calculations ships an update every 3 weeks, and my Installed Base every 4 months. Most recently, Electrical Calculations was updated on September 22, 2026 and my Installed Base on September 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.*