# iTSX vs Engine Link LE

The clearest difference is rating: Engine Link LE at 3.2 against iTSX's 2.3. Engine Link LE also leads on review sentiment (46% vs 24%). iTSX's advantage is update cadence (every 2 months vs every 6 months) and ratings volume (44 vs 12). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Engine Link LE holds the better App Store score, 3.2 against 2.3. Both are backed by a comparable volume of ratings — 44 and 12 respectively. Written reviews point the same way: 24% of iTSX's written reviews are positive against 46% of Engine Link LE's.

iTSX ships an update every 2 months, Engine Link LE every 6 months. The most recent releases landed on September 30, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | iTSX | Engine Link LE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (44 ratings)](https://appshunter.io/ios/app/itsx/id461100848/reviews) | **[3.2 (12 ratings)](https://appshunter.io/ios/app/engine-link-le/id1222128102/reviews)** |
| Number of ratings | **44** | 12 |
| Positive reviews | 24.5% of reviews | **46.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 35 MB | 9 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SCT Performance](https://appshunter.io/developer/461100851) | [K SOLUTION LLC](https://appshunter.io/developer/289670447) |

## What reviewers say

### iTSX

[App page](https://appshunter.io/ios/app/itsx/id461100848)

Tune and monitor your vehicle's performance using your iPhone or iPad. This app requires a specific wireless OBD-II interface to adjust engine parameters, view real-time data, and run performance tests. It also allows for reading and clearing diagnostic trouble codes.

**Highlights:** Vehicle programming for performance gains, Pre-loaded dyno-proven tunes, Adjustable speed limiter, Virtual gauges and data monitoring, Record and review data logs, Performance tests (0-60, 1/4 mile), Read and clear diagnostic trouble codes

**In-app purchases:** none


### Engine Link LE

[App page](https://appshunter.io/ios/app/engine-link-le/id1222128102)

Transform your iPhone into a vehicle diagnostics tool. Monitor real-time performance, read and clear fault codes, and customize gauges to display the data you need. Requires a LELink adapter for OBD2 connection.

**Highlights:** Real-time vehicle data display, Read and clear OBD fault codes, Customizable gauges and dashboard, MPG widget and fuel efficiency tracking, Heads-up display (HUD) mode, Horsepower, torque, and acceleration metrics, Support for various OBD-II/EOBD vehicles

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

**In-app purchases:** none


## Frequently asked questions

### Is iTSX free?

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

### Is Engine Link LE free?

Engine Link LE is free to download, with no in-app purchases.

### Which has better reviews, iTSX or Engine Link LE?

Engine Link LE is rated higher. iTSX averages 2.3 out of 5 from 44 ratings, while Engine Link LE averages 3.2 from 12 ratings.

### Do iTSX or Engine Link LE have ads?

Neither iTSX nor Engine Link LE shows ads.

### Which is updated more often, iTSX or Engine Link LE?

iTSX ships an update every 2 months, and Engine Link LE every 6 months. Most recently, iTSX was updated on September 30, 2026 and Engine Link LE on September 24, 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.*