# Electrical Engineering vs Maintenance Pro

The clearest difference is in-app purchases: Maintenance Pro at none against Electrical Engineering's 2. Maintenance Pro also leads on update cadence (every 3 days vs every 4 months) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Electrical Engineering sells 2 one-off in-app purchases. Maintenance Pro asks for nothing beyond the download.

Electrical Engineering ships an update every 4 months, Maintenance Pro every 3 days. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Electrical Engineering | Maintenance Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (253 ratings)](https://appshunter.io/ios/app/electrical-engineering-lite/id929996924/reviews)** | — |
| Number of ratings | **253** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 31 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Ayoub Chergui](https://appshunter.io/developer/6789482447) |

## What reviewers say

### Electrical Engineering

[App page](https://appshunter.io/ios/app/electrical-engineering-lite/id929996924)

This app offers a comprehensive suite of electrical calculations and conversions for professionals and students. It handles diverse units and provides precise results for various electrical engineering tasks, including voltage, current, power, and more.

**Highlights:** 60 Electrical Calculators, 16 Electrical Converters, Voltage, Current, Resistance, Power calculations, kVA to Amps and Amps to kVA conversions, Single and Three Phase Power calculations, Star to Delta & Delta to Star conversions, Unit handling for diverse electrical measurements

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 16 Electrical Converters | $0.99 | one-time |
| Electrical Engineering Pack | $3.99 | one-time |


### Maintenance Pro

[App page](https://appshunter.io/ios/app/maintenance-pro-technicien/id6818592166)

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

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Engineering free?

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

### Is Maintenance Pro free?

Maintenance Pro is free to download, with no in-app purchases.

### Do Electrical Engineering or Maintenance Pro have ads?

Both Electrical Engineering and Maintenance Pro show ads.

### Which is updated more often, Electrical Engineering or Maintenance Pro?

Electrical Engineering ships an update every 4 months, and Maintenance Pro every 3 days. Most recently, Electrical Engineering was updated on November 1, 2026 and Maintenance Pro on October 24, 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.*