# Engine LD vs Hi

The clearest difference is price: Hi at Free against Engine LD's $2.99. Hi also leads on iOS requirement (11.4 vs 13.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

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

Engine LD ships an update every 5 months, Hi every 7 months. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Engine LD | Hi |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hi-perf/id1473243365/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 7 months |
| Monetization | — | Free |
| Size | 10 MB | 294 MB |
| Requires iOS | 13.0 | **11.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI](https://appshunter.io/developer/914295588) | [TOTAL MARKETING SERVICES](https://appshunter.io/developer/345297402) |

## What reviewers say

### Engine LD

[App page](https://appshunter.io/ios/app/engine-ld/id930614716)

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

**In-app purchases:** none


### Hi

[App page](https://appshunter.io/ios/app/hi-perf/id1473243365)

Explore the inner workings of your motorcycle's engine with this educational app. It provides a detailed look at engine components and explains the benefits of lubrication for each part, aiming to increase technical awareness for all riders.

**Highlights:** Detailed engine component exploration, Explanation of lubrication benefits, Increased technical awareness for riders, Visual insights into engine parts

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

**In-app purchases:** none


## Frequently asked questions

### Is Engine LD free?

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

### Is Hi free?

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

### Do Engine LD or Hi have ads?

Neither Engine LD nor Hi shows ads.

### Which is updated more often, Engine LD or Hi?

Engine LD ships an update every 5 months, and Hi every 7 months. Most recently, Engine LD was updated on October 9, 2026 and Hi on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*