# Engine Calculator Plus vs Electronic

The clearest difference is review sentiment: Electronic at 100% against Engine Calculator Plus's 13%. Electronic also leads on update cadence (fortnightly vs every 48 months) and ratings volume (3 vs 1). Engine Calculator Plus's advantage is rating (4.0 vs 2.3) and price ($2.99 vs $9.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Engine Calculator Plus costs $2.99 and Electronic $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Engine Calculator Plus holds the better App Store score, 4.0 against 2.3. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews complicate that: 13% of Engine Calculator Plus's written reviews are positive against 100% of Electronic's, so the app with the better star average is not the one people write more warmly about.

Engine Calculator Plus ships an update every 48 months, Electronic fortnightly. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Engine Calculator Plus | Electronic |
| --- | --- | --- |
| Price | **$2.99** | $9.99 |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/engine-calculator-plus/id1355990764/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/electronic-toolbox-2/id6752488879/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 12.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 48 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 2 MB | 166 MB |
| Requires iOS | **13** | 18.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Marcus Roskosch](https://appshunter.io/developer/334053438) |

## What reviewers say

### Engine Calculator Plus

[App page](https://appshunter.io/ios/app/engine-calculator-plus/id1355990764)

Calculate engine specifications for various car and plane engines, including displacement, compression ratio, and horsepower. Supports metric and imperial systems with a user-friendly interface and 3D engine visualization.

**Highlights:** Engine displacement calculation, Compression ratio calculation, Horsepower estimation, Metric and Imperial support, 3D engine display, Copyable results

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

**In-app purchases:** none


### Electronic

[App page](https://appshunter.io/ios/app/electronic-toolbox-2/id6752488879)

This comprehensive electronics reference and tool suite offers over 70 calculators, tables, and data for engineers, students, and hobbyists. It features a modern UI, iCloud sync, multi-window support, and PDF export, all accessible offline.

**Highlights:** Over 70 tools, tables, and references, Universal app for iPhone, iPad, and Mac, iCloud sync across devices, Multi-window support for parallel use, PDF export for results, Offline functionality, Modern UI with Dark Mode

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Engine Calculator Plus free?

Engine Calculator Plus costs $2.99, with no in-app purchases.

### Is Electronic free?

Electronic costs $9.99, with no in-app purchases.

### Which has better reviews, Engine Calculator Plus or Electronic?

Engine Calculator Plus is rated higher. Engine Calculator Plus averages 4.0 out of 5 from 1 ratings, while Electronic averages 2.3 from 3 ratings.

### Do Engine Calculator Plus or Electronic have ads?

Neither Engine Calculator Plus nor Electronic shows ads.

### Which is updated more often, Engine Calculator Plus or Electronic?

Engine Calculator Plus ships an update every 48 months, and Electronic fortnightly. Most recently, Engine Calculator Plus was updated on October 15, 2026 and Electronic on October 2, 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.*