Unleash the true performance of your (2018-onward) Mk4 Focus ST or Mk8 Fiesta ST with mountune’s revolutionary mTune SMARTflash app; install performance calibrations, updates and new features easily, all via Bluetooth, using your smartphone!

Trusted by thousands of Ford owners worldwide to provide safe, reliable performance increases, mountune’s mTune SMARTflash allows you to seamlessly switch between calibrations, stored locally on your smart phone, all with the freedom of Bluetooth.

Simply plug in the partner EVI Bluetooth dongle to your vehicle’s OBD port, download this app and with a supplied calibration, you can easily update or replace the existing software with mountune’s performance derivative; support for additional functionality will also be added in the future.

Please note: This app requires a supporting calibration and a SMARTflash EVI Bluetooth OBD dongle to facilitate calibration updates, these only available to purchase from mountune. For more information please visit

What’s New

Version 1.1.3

- Added Ford Focus Mk4 support
- Added DTC tool
- Improved programming speed

App Privacy

The developer, EcuTek Technologies Ltd, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

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


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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