iTSX 4+

SCT Performance

    • 2.2 • 40 Ratings
    • Free




NOTE: This app requires the iTSX Wireless OBD-II Interface. Visit 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:

• 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


• 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


• 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


• Reads & Clears Vehicle Diagnostic Trouble Codes ( Check Engine Light )
• Diagnose your vehicle’s Diagnostic Trouble Codes using your mobile device

What’s New

Version 1.9

This app has been updated by Apple to display the Apple Watch app icon.

64-bit support

Ratings and Reviews

2.2 out of 5
40 Ratings

40 Ratings

Redline727 ,

Works when if feels like it

I had this since September. It is a fight every time I try to load a tune or return to stock then try to reload a tune. I have done everything from a factory reset to updating the firmware and deleting the app to restoring my iPad. Always the same story. I get a failed to setup accessory message 9 out of 10 times. Then all of a sudden it works, and will stay working till the next time I go to use it. Could never get it to work on my iPhone 5 for whatever reason. Only works sometimes on my iPad 3. Thankfully I have both or I would have had to return it. Then when you finally get it to work, the app is horrible and needs updating. The gauges are cut off on the iPad and the keyboard fails to open when you need to type in the app, like vehicle weight or name a custom tune. Please pay attention here SCT and fix this stuff!

Hateutwo ,

BAMA! SCT! ITSX! Read! ⬇️

The app works. The tunes transfer and what not but this thing is old, outdated, slow, ugly, buggy and sometimes doesn't work. I don't regret purchasing but i do with that this thing i paid so much for would be kept up. Needs more tuning options, advanced options and better less buggy dataloging. 3/5 due to insustainability.

I'd rather eat poop ,

Must Update Dongle Firmware!!!

You must update the dongle's firmware or you will not be able to change the car's ecu program. After I updated this app, I was no longer able to return the car's ecu back to stock. It would error out. After multiple try's of trouble shooting with SCT tech, they remotely accessed my laptop, with the dongle plugged in using the USB cord, and updated the firmware and some other files. All good now and works perfectly. As of now, it does not say on the app update that you must download the dongle firmware but since they are having so many tech calls, they are going to add it soon. I figured I let you guys know. I suggest updating both. Works awesome.

App Privacy

The developer, SCT Performance, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

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