Comparison

iTSX vs Engine Link LE

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iTSX

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
Read full description

TUNE YOUR VEHICLE WITH YOUR iPHONE / iPAD! NOTE: This app requires the iTSX Wireless OBD-II Interface. Visit https://sctflash.com/Products/unfiltered-product/sct/SCTITSX/sct-itsx for more information. The iTSX App lets you control the vehicle-tuning and monitoring capabilities of the iTSX Wireless OBD-II Interface... the first & only “Made for iPod – iPhone – iPad” vehicle tuner & OBD-II monitoring product on the market. The iTSX Wireless OBD-II Interface plugs into your vehicle’s OBD-II diagnostic connector, and communicates with your Apple device via a secure Bluetooth wireless connection. When used with the iTSX Wireless OBD-II Interface, the iTSX App provides the following features: VEHICLE PROGRAMMING • Increase your vehicle’s Performance in Minutes • Works with 1996 - 2012 Ford Gas & Diesel vehicles • Works with popular GM vehicles (see What's New) • Pre-Loaded Dyno Proven Tunes for the Most Popular vehicles • Re-Calibrates the Vehicle using Bluetooth Wireless Technology • Ability to set your vehicle’s Speed Limiter for young drivers VIRTUAL GAUGES / DATA MONITORING / DATA LOGGING • On-Screen Virtual Gauges with Adjustable Warning / Alert lights • Monitor Vehicle Engine Data / Parameters via Virtual Gauges • Record & Review Recorded Data Logs • Huge Virtual Gauges on iPad VEHICLE PERFORMANCE TESTS • 0-60MPH Test: Virtual Speedometer & Graph with Estimated Horsepower • ET / MPH Test: 1/8th mile & 1/4 mile ET / MPH with Estimated Horsepower • Top Speed Test • Braking Test VEHICLE DIAGNOSTICS • Reads & Clears Vehicle Diagnostic Trouble Codes ( Check Engine Light ) • Diagnose your vehicle’s Diagnostic Trouble Codes using your mobile device

About

Engine Link LE

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
Read full description

EngineLink LE will turn your iPhone/iPod into vehicle / car performance / diagnostics tool and scanner that uses a LELink (low Energy Bluetooth) adapter to connect to your OBD2 engine management / ECU. BENEFITS: * Emission Test. * See what your car is doing in real-time. * Read and clear OBD fault codes. * Display car performance and sensor data. * Customizable gauges, showing only the data you were interested in * NO in-app purchase and NO subscription fees! __________________ FEATURES: + Show and reset a DTC / CEL / fault code (current, pending and history) like a scan tool + Graph data + MPG widget to plot real time fuel efficiency + Heads up display / HUD mode for night time driving (mirror the display on your vehicle's windshield) + Can read Transmission Temperatures (vehicle dependent) + Horsepower/HP & Torque / acceleration + Boost / vacuum gauge + Engine speed / Engine RPM / Engine Load /Coolant / Fuel Tank + Customizable dashboard + Full configurable GUI with user choice of dial gauge, bar gauge, plot gauge, digital gauge, and on-off gauge as display elements + Full custom PID support. + Formula support. + Preloaded GM and Ford PID libraries + Preloaded standard PID library and Prius PID libraries . + User can add more libraries within the app or by using iTunes File Sharing + Multiple ECU support. Non-CAN, 11-bit CAN, and 29-bit CAN ECU bus types + Multiframe data support + Background color option + Email user log function (access by long pressing custom PID screen) + Multiple PID formula support + 0 to 60mph timer and quarter mile timer __________________ EngineLink supports all OBD-II and EOBD compliant vehicles sold worldwide. If in doubt check with your manufacturer first or look for 'OBD2' on written on a big white label in your engine bay. The app needs LELink or LELink2 (Bluetooth Low Energy) to work. The following iOS devices supports Bluetooth Low Energy BLE 4.0 and will work with LELink: iPhone 4s or later iPad (3rd generation) or later iPad mini or later iPod touch (5th generation) or later. You can check Developer WebSite for Adapter Guide: http://www.outdoor-apps.com/enginelink.html Drop us an email for any suggestions/questions you may have at support@ksolution.org. We will answer.

Screenshots

iTSX4 screens
Engine Link LE4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
iTSX versus Engine Link LE: the parameters behind the verdict, then further details
ParameteriTSXEngine Link LE
PriceFreeFree
Rating2.3 (44 ratings)3.2 (12 ratings) — better
Positive reviews24.5% of reviews46.2% of reviews — better
Number of ratings44 — better12
Update frequencyEvery 2 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS8.0 — better12.0
Further details — not scored
Size35 MB9 MB
Age rating4+4+
DeveloperSCT PerformanceK SOLUTION LLC

Customer experience

iTSX

All ratings44 ratings
Positive18.2%
Neutral25.0%
Negative56.8%
Written reviews49 reviews
Positive24.5%
Neutral22.4%
Negative53.1%

Engine Link LE

All ratings12 ratings
Positive50.0%
Neutral8.3%
Negative41.7%
Written reviews13 reviews
Positive46.2%
Neutral15.4%
Negative38.5%

In-app purchases

None

iTSX

No in-app purchases

None

Engine Link LE

No in-app purchases

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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