# LCOE vs Engine Lab

The clearest difference is update cadence: LCOE at every 4 days against Engine Lab's every 9 days. LCOE also leads on iOS requirement (16.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. LCOE sells 2 one-off in-app purchases and Engine Lab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

LCOE ships an update every 4 days, Engine Lab every 9 days. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | LCOE | Engine Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/engine-lab-simulator-and-sound/id6790748979/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 12 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lucy Enterprises](https://appshunter.io/developer/1656612108) | [Jan Sokol](https://appshunter.io/developer/1896490456) |

## What reviewers say

### LCOE

[App page](https://appshunter.io/ios/app/lcoe/id1499284022)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |
| Create New | $2.99 | one-time |


### Engine Lab

[App page](https://appshunter.io/ios/app/engine-lab-simulator-and-sound/id6790748979)

Explore engine mechanics with a touch-first simulator. Build, tune, and test custom engines, observing animations and hearing synthesized exhaust sounds. Export your creations as WAV files.

**Highlights:** Touch-first engine simulation, Build and save custom engines, Tune engine parameters, Simulated dyno pulls, Crank and piston animation, Native exhaust synthesis, Export WAV audio

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Engine Lab Pro | $4.99 | one-time |


## Frequently asked questions

### Is LCOE free?

LCOE is free to download, with in-app purchases available.

### Is Engine Lab free?

Engine Lab is free to download, with in-app purchases available.

### Do LCOE or Engine Lab have ads?

Neither LCOE nor Engine Lab shows ads.

### Which is updated more often, LCOE or Engine Lab?

LCOE ships an update every 4 days, and Engine Lab every 9 days. Most recently, LCOE was updated on October 3, 2026 and Engine Lab on October 10, 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.*