MobiSquirt allows you to connect your iOS device to a MegaSquirt ECU, view realtime data from your car's engine control system and log that data for later analysis using available tools such as MegaLogViewer.

MobiSquirt will eventually support all versions of the MegaSquirt firmware but initial versions of the app will concentrate on compatibility with MegaSquirt 1, MegaSquirt 1 - Extra, MegaSquirt 2 and MegaSquirt 2-Extra. It is also anticipated that support for MegaJolt will be added.

Version 1.2 of the App has been tested against most versions of the MS1-Extra and MS2-Extra firmware. Other firmware versions have partial or no support in this version.

Use of this app will require provision of a WiFi or Bluetooth connection to your MegaSquirt ECU. Details of suitable options for this are available on the app web site - and in the user manual available at

What’s New

Version 1.2

Updated to support current devices.
A rebuild of the underlying architecture giving faster logging.
Support for Bluetooth BLE serial devices added.

Ratings and Reviews

3.0 out of 5
2 Ratings

2 Ratings

Jimwildman ,

Needs further development

I love the work done on this so far just wish there were more effort or perhaps collaboration on the project.

Mecánica Junior ,

App not work.

Why not connect?

Migranotena ,

5 stars

I gave it 5 stars just because the time and effort to make a megasquirt app and it's free.


Dave White
20.8 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2011-2018 Dave White


  • Family Sharing

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

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