# iVehicleWeigh vs Engine Calculator Plus

The clearest difference is price: iVehicleWeigh at Free against Engine Calculator Plus's $2.99. iVehicleWeigh also leads on update cadence (every 13 months vs every 48 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

iVehicleWeigh is free to download; Engine Calculator Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iVehicleWeigh ships an update every 13 months, Engine Calculator Plus every 48 months. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | iVehicleWeigh | Engine Calculator Plus |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/engine-calculator-plus/id1355990764/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 13 months** | Every 48 months |
| Monetization | — | Paid |
| Size | 9 MB | 2 MB |
| Requires iOS | **12.0** | 13 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Intercomp](https://appshunter.io/developer/427048141) | [Nitrio](https://appshunter.io/developer/321121189) |

## What reviewers say

### iVehicleWeigh

[App page](https://appshunter.io/ios/app/ivehicleweigh/id571320971)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is iVehicleWeigh free?

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

### Is Engine Calculator Plus free?

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

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

Neither iVehicleWeigh nor Engine Calculator Plus shows ads.

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

iVehicleWeigh ships an update every 13 months, and Engine Calculator Plus every 48 months. Most recently, iVehicleWeigh was updated on October 10, 2026 and Engine Calculator Plus on October 15, 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.*