# Electrical Calculations vs Hidropress

The clearest difference is in-app purchases: Hidropress at none against Electrical Calculations's 3. Hidropress also leads on ads (none vs shown). Electrical Calculations's advantage is update cadence (every 2 weeks vs every 73 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. Hidropress asks for nothing beyond the download.

Electrical Calculations ships an update every 2 weeks, Hidropress every 73 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Electrical Calculations | Hidropress |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (129 ratings)](https://appshunter.io/ios/app/electrical-calculations/id993232048/reviews)** | — |
| Number of ratings | **129** | — |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 73 months |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 3 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) | [Luiz Henrique Feltrin](https://appshunter.io/developer/1465113101) |

## 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 |


### Hidropress

[App page](https://appshunter.io/ios/app/hidropress/id1465113102)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Calculations free?

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

### Is Hidropress free?

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

### Do Electrical Calculations or Hidropress have ads?

Electrical Calculations shows ads; Hidropress does not.

### Which is updated more often, Electrical Calculations or Hidropress?

Electrical Calculations ships an update every 2 weeks, and Hidropress every 73 months. Most recently, Electrical Calculations was updated on October 24, 2026 and Hidropress on October 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.*