# Engine Horsepower Calculator vs EMC Debug

The clearest difference is price: EMC Debug at Free against Engine Horsepower Calculator's $2.99. EMC Debug also leads on update cadence (weekly vs every 29 months). Engine Horsepower Calculator's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

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

Engine Horsepower Calculator ships an update every 29 months, EMC Debug weekly. The most recent releases landed on November 2, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Engine Horsepower Calculator | EMC Debug |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.2 (6 ratings)](https://appshunter.io/ios/app/engine-horsepower-calculator/id1095000562/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 29 months | **Weekly** |
| Monetization | Paid | — |
| Size | 1 MB | 63 MB |
| Requires iOS | 13 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [CHEHUNG LIN](https://appshunter.io/developer/1875201673) |

## What reviewers say

### Engine Horsepower Calculator

[App page](https://appshunter.io/ios/app/engine-horsepower-calculator/id1095000562)

Estimate your vehicle's engine horsepower using different calculation methods based on weight, time, and speed. This tool provides estimations for quarter-mile runs.

**Highlights:** Estimate engine horsepower, Quarter-mile run calculations, ET Method calculation, Trap-speed Method calculation, RPM Torque Method calculation, Vehicle weight input

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

**In-app purchases:** none


### EMC Debug

[App page](https://appshunter.io/ios/app/emc-debug/id6758831611)

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

**In-app purchases:** none


## Frequently asked questions

### Is Engine Horsepower Calculator free?

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

### Is EMC Debug free?

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

### Do Engine Horsepower Calculator or EMC Debug have ads?

EMC Debug shows ads; Engine Horsepower Calculator does not.

### Which is updated more often, Engine Horsepower Calculator or EMC Debug?

Engine Horsepower Calculator ships an update every 29 months, and EMC Debug weekly. Most recently, Engine Horsepower Calculator was updated on November 2, 2026 and EMC Debug on November 9, 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.*