ECU Connect vs MODI Mobile Diagnostics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ECU Connect
This app allows you to program tuned files directly to your car's ECU using your phone. It also provides real-time engine performance monitoring and customizable dashboards. A Bluetooth interface is required for full functionality.
- Program tuned ECU files wirelessly
- Real-time engine performance monitoring
- Customizable parameter dashboards
- Log engine data with GPS coordinates
- Adjust RaceROM features on the fly
- Connects via Bluetooth Vehicle Interface
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IMPORTANT This app requires an EcuTek Bluetooth Vehicle Interface to connect to your car's ECU. These are available from EcuTek Tuners. Find your nearest one at www.ecutek.com/dealers. If you don't have an interface, run the demo mode within the app to see ECU Connect in action. ECU Connect is the free companion app to the new pocket-size Bluetooth Vehicle Interface produced by specialist tuning firm EcuTek Technologies. Once you have purchased your EcuTek Vehicle Interface, plug it into your car's OBD vehicle diagnostic socket, pair it with your phone in the app and you will open up a whole new world of enjoyment with your car. With ECU Connect, you can receive and program in a tuned file from one of our EcuTek Master Tuners just with your phone. No laptop, no wires, no fuss. Just create an account in the app, select the tuner you want to work with, and you are ready to receive the tuned file. Discuss with your tuner what you want to achieve from the tune and once the file has been created, you will receive a notification that the file is ready. Go to Program ECU, select the file and follow the on-screen instructions. It's as easy as that. All that's left is for you to enjoy the car! For more details on programming your car’s ECU with ECU Connect go to www.ecutek.com/phone-flash Your EcuTek Tuner can also set up some unique RaceROM features which allows you to control and adjust some aspects of the tune with your phone: Launch RPM; Traction Control settings; boost and torque levels; switch between different set ups such as track mode, economy mode, fast road and flexfuel on the fly. These are just some of the example set ups. Speak to your EcuTek Master Tuner and discuss with them what you'd like. There are lots of options to choose from. For a list of supported models together with their ECU Connect Features go to www.ecutek.com/ecu-connect Whether your car is tuned on EcuTek or not, with ECU Connect you can instantly see how your engine is performing as you drive it (even if the car is not officially supported, ECU Connect provides basic support for most cars using generic OBD2 CAN communication protocol available on nearly all vehicles manufactured from 2008 onwards). You can view and log any parameter the ECU records and even create unlimited personalised dashboards if you want to monitor specific groups of parameters. Save and send these logs direct from the app to your tuner. You can also record GPS coordinates in the log files, so you can see what was happening at any given point on your logging run (very useful on track days).
MODI Mobile Diagnostics
This app provides advanced diagnostic and customization options for vehicles. It allows users to read and clear trouble codes, view live data, perform module scans, and unlock coding features for various car brands. A health report feature helps identify potential issues before trips.
- Vehicle diagnostics
- Read and clear diagnostic trouble codes
- Live data display
- Module scan
- Coding and customization
- Health Report
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MODI is a next-generation mobile diagnostic interface, designed and developed by Abrites. Manufactured by the highest standards in the industry, it has been created with automotive enthusiasts in mind, giving you a vast variety of diagnostic and customization options. MODI allows you to tap into the full potential of your vehicle by unlocking coding functions for your car. Main functionalities: • Vehicle diagnostics • Reading and clearing diagnostic trouble codes • Live data displayed in a graph and table view • Module scan • Coding and customization options • Health Report With MODI, you can read and clear diagnostic trouble codes from your car. A “Check Engine” light popped up on your dashboard and your vehicle is now in emergency mode? Not a problem - with MODI, you can perform diagnostics review the trouble code, clear it, drive your car to the nearby mechanic, or continue your journey! You’ve just collected your car from the service shop and noticed that the service intervals are not reset. With MODI in your glove box, this is not an issue anymore - now you can reset the service intervals on your car all by yourself, quickly and easily. We are officially introducing our newest feature: Health Report. Planning a family trip? With our Health Report feature, you can scan all modules on your vehicle, review the registered trouble codes and understand the state of your car. This will point you to potential problems you may face during your upcoming trip so that you can plan a visit to your mechanic. This feature has the potential to spare you costly roadside assistance and repair bills. With MODI, you are getting much, much more. Coding Features*: BMW • Unlock the “M” logo and change other visual elements on the instrument cluster and HUD • Enable full-screen Apple Carplay • Enable/disable the engine Start-Stop system VAG • Enable needle sweep and lap time on the instrument cluster and HUD • Change the startup screen on the instrument cluster/HUD • Enable/disable side-mirror folding and opening on vehicle lock/unlock • Enable wireless Apple Carplay (if the wired function is supported) Peugeot/Citroen • Configure DRL • Enable/disable side-mirror folding and opening on vehicle lock/unlock *The coding features are available only on supported car brands and models. The MODI hardware is Bluetooth-enabled and works with the designated MODI app, available in the Apple Store. You need less than 3 minutes to install your MODI on your car and start using it. How It Works: 1. Connect MODI to your car using the OBD2 port. 2. Download the MODI app on your phone from the App Store. 3. Open the MODI app, select your car brand and access the features and configurations of your car. No in-app purchases or subscriptions are required while you are using MODI. What does this mean for you? You will no longer have to worry about recurring charges, and you will have access to all features of the app without having to pay extra. This will make it easier for you to use MODI and get the most out of it. Have you ever wanted to unlock the full potential of your car? With MODI, you can do just that!
Screenshots
Verdict
The clearest difference is review sentiment: ECU Connect at 62% against MODI Mobile Diagnostics's 0%. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ECU Connect ships an update every 3 weeks, MODI Mobile Diagnostics monthly. The most recent releases landed on October 13, 2026 and October 4, 2026 respectively.
| Parameter | ECU Connect | MODI Mobile Diagnostics |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (88 ratings) — better | — |
| Positive reviews | 62.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 88 — better | — |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 83 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | EcuTek Technologies Ltd | MODI Abrites Ltd. |
Customer experience
ECU Connect
MODI Mobile Diagnostics
Bugs and requests
ECU Connect
Reported bugs
22 issues- App kicks you out when changing background
- Refusals to flash citing nonexistent problems
- Super finicky about battery voltage
- Zero transmission logging
- Latest firmware update no longer allowing app to read car interface on iOS
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- iPhone 16 not working with software
- Boost gauge isn't working after update
- No flash button after update
- App doesn't find ECU connect device via Bluetooth
- Dongle is always incompatible with TPMS on GT-R my 2015
- Doesn't detect the B58 Supra anymore
- Broken for BMW with S55 after update
- Issue with the Bluetooth connect
- Update is slower to load main page
- Vehicle not being recognized after update
- Dashboard won't open after update
- Dashboard showing in V instead for AFR
- No Dashboard after update
- Vehicle not being recognized (since update)
- Firmware problem, app fails to detect Nissan GTR
- Racerom not recognised in app on phone
- Getting an EVI update failed msg
Requested features
22 requests- CarPlay support
- Android Auto support
- CarPlay widget
- Widget for iOS home screen
- Landscape dashboard view
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- Edit dashboard offline
- Tablet landscape view
- Watch integration
- Timer for logging feature
- Add 'danger to manifold' alarm text
- Make throttle sensitivity available to everyone
- Develop a CarPlay widget or something
- Add a CarPlay feature to put your dashboard on your CarPlay app
- Add a CarPlay/AndroidAuto version of this app
- A way to modify a dashboard without being connected
- Add CarPlay support!
- Develop Apple CarPlay/android auto support for gauges
- Integrate with Apple CarPlay
- Integrate with car play
- Maybe that other OS too
- Maybe some watch integration
- Could we request some kind of watch app for alerts etc
MODI Mobile Diagnostics
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ECU Connect
No in-app purchases
MODI Mobile Diagnostics
No in-app purchases
Questions
Is ECU Connect free?
Is MODI Mobile Diagnostics free?
Do ECU Connect or MODI Mobile Diagnostics have ads?
Which is updated more often, ECU Connect or MODI Mobile Diagnostics?
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