# Electrical Engineering vs Hydraulic schemes

The clearest difference is price: Electrical Engineering at Free against Hydraulic schemes's $0.99. Electrical Engineering also leads on ratings volume (12 vs 1). Hydraulic schemes's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). On rating, review sentiment, in-app purchases and monetization model there is nothing between them.

Electrical Engineering is free to download; Hydraulic schemes costs $0.99 up front. Electrical Engineering sells 7 in-app purchases, starting at $3.99 per month and Hydraulic schemes sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Hydraulic schemes holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Electrical Engineering has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 71% of Electrical Engineering's written reviews are positive against 77% of Hydraulic schemes's.

Electrical Engineering ships an update every 2 months, Hydraulic schemes every 2 weeks. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Electrical Engineering | Hydraulic schemes |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.8 (12 ratings)](https://appshunter.io/ios/app/electrical-engineering-quiz/id1330321712/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hydraulic-schemes/id1602894931/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | 70.8% of reviews | **76.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 115 MB | 10 MB |
| Requires iOS | 15.5 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carlo Terracciano](https://appshunter.io/developer/1159639539) | [Angel Martinez](https://appshunter.io/developer/1446956865) |

## What reviewers say

### Electrical Engineering

[App page](https://appshunter.io/ios/app/electrical-engineering-quiz/id1330321712)

This app provides electrical calculations and fundamental concepts for students and professionals. It covers Ohm's Law, power calculations, circuit analysis, and advanced topics like wire sizing and power factor correction.

**Highlights:** Electrical calculations, Basic electrical knowledge, Advanced electrical topics, Ohm's Law and power calculations, Circuit analysis theorems, Wire sizing and voltage drop, Resistor color codes

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription - Electro | $3.99 | per month |
| Monthly subscription - Electro | $5.99 | per month |
| Annual Subscription Electronic | $8.99 | per year |
| Annual Subscription Electronic | $24.99 | per year |
| Annual Subscription Electronic | $24.99 | per year |
| Lifetime Subscription Electro | $29.99 | one-time |
| Circuits & Electric Machines | $99.99 | one-time |


### Hydraulic schemes

[App page](https://appshunter.io/ios/app/hydraulic-schemes/id1602894931)

Easily design hydraulic, heating, cooling, and air conditioning schematics. Drag and drop symbols to quickly build your diagrams. Save and edit your work with the PRO version.

**Highlights:** Create hydraulic schemes, Drag and drop symbol placement, Extensive symbol library, Save and edit schemes (PRO), Export as image or PDF, Multiple HVAC system support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads, save/edit diagram | $3.99 | one-time |


## Frequently asked questions

### Is Electrical Engineering free?

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

### Is Hydraulic schemes free?

Hydraulic schemes costs $0.99, and also offers in-app purchases.

### Which has better reviews, Electrical Engineering or Hydraulic schemes?

Hydraulic schemes is rated higher. Electrical Engineering averages 4.8 out of 5 from 12 ratings, while Hydraulic schemes averages 5.0 from 1 ratings.

### Do Electrical Engineering or Hydraulic schemes have ads?

Electrical Engineering shows ads; Hydraulic schemes does not.

### Which is updated more often, Electrical Engineering or Hydraulic schemes?

Electrical Engineering ships an update every 2 months, and Hydraulic schemes every 2 weeks. Most recently, Electrical Engineering was updated on November 6, 2026 and Hydraulic schemes on November 7, 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.*