3.6
465 reviews
10K+
Downloads
Content rating
Everyone
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About this app

With eFlexApp you can monitor your eFlexFuel device in real time. eFlexApp recognizes your eFlexFuel device version and offers different features with each product. The app also enables adjusting of eFlexPlus and eFlexPro devices. Change language (English, French, Finnish), temperature unit (°F/°C) and theme (light/dark).


eFlexEco, eFlexBlue and eFlexFuel

MONITOR: ethanol content, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment, (engine RPM in eFlexEco Firmware 11.0+)
CHECK: device status


eFlexPlus Direct, eFlexBlue Direct

MONITOR: ethanol content, engine RPM, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment
CHECK: device status


eFlexPlus and eFlexMoto Plus

MONITOR: ethanol content, engine RPM, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment
ADJUST: RPM based enrichment with driving mode selection (save a custom driving mode setting created with eFlexTuner software) & cold enrichment (save a custom setting created with eFlexTuner software)
CHECK: device status, startup information


eFlexPro and eFlexMoto Pro

MONITOR: ethanol content, engine RPM, duty cycle, fuel temperature, ambient engine temperature, injector activity & cold enrichment
ADJUST: RPM based enrichment with driving mode selection (save up to three custom driving mode settings created with eFlexTuner software) & cold enrichment (save a custom setting created with eFlexTuner software)
CHECK: device status, startup information


eFlexApp communicates with your eFlexFuel device via Bluetooth. Permission to use Bluetooth is required.

Please contact support@eflexfuel.com if you have any feedback!

Privacy policy: https://eflexfuel.com/us/privacy-policy


Developed by StepOne Tech Ltd
Updated on
Mar 13, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

3.6
459 reviews
John Cleveland
December 18, 2023
Unfortunately only 1 star. The app worked for about 3 days. Then it stopped connecting. It shows up on my phone as a paired device, but when I open app and scan, it's not there. The only way to get it to connect is to uninstall app, unpair module, then re-set everything back up. Then it will connect once, and once only unless I go through the whole process again. I found an old version APK of 1.0.2 and tried it. Very very limited functionality, but it does connect every time. Please fix!
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Anton Lehmus
January 23, 2021
Otherwise 4 or 5 star app, depending how do you like the visual and UX design. BUT the Bluetooth connection is pretty dodgy. When it works though it's pretty great; clear and easy to use and does exactly what it promises.
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Ppc C.
April 18, 2023
Please bring back landscape mode. Also, it asks for access to location, I thought it would have a speedometer next to the tach. That would be a huge plus.
2 people found this review helpful
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What's new

Introduced fuel log