Engine LD vs Hi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Engine LD
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Engine Layout Definitions (Engine LD) Understand how piston–crank geometry impacts engine performance. • Explore how layout changes affect engine displacement, rated power, and dynamic forces. • View detailed graphs and data lists: • Displacement volume vs. crank angle • Dynamic forces vs. crank angle • Export values for spreadsheet analysis or basic FEA (finite element analysis). • Interactive simulation: adjust crank rotation with a slider to visualize dimension effects on engine packaging.
Hi
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.
- Detailed engine component exploration
- Explanation of lubrication benefits
- Increased technical awareness for riders
- Visual insights into engine parts
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Whether your motorcycle is your passion, commuting tool, or business vehicle we offer you the opportunity to discover it in details… Have a look inside your motorcycle engine! TOTAL HI-PERF app targets to raise technical awareness of all motorcycle users around the world by offering them a deep dive into their motorcycles' engine. It also illustrates the advantages of lubricating each part of a motorcycles' engine.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Engine LD | Hi |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 11.4 — better |
| Further details — not scored | ||
| Size | 10 MB | 294 MB |
| Age rating | 4+ | 4+ |
| Developer | DRH YAZILIM VE MUHENDISLIK HIZMETLERI LTD STI | TOTAL MARKETING SERVICES |
In-app purchases
Engine LD
No in-app purchases
Hi
No in-app purchases
