eFlexApp

2.2.13

StepOne Tech Ltd

3.47

488 reviews

10,000+
Downloads

Free

Get the most of your eFlexFuel device by connecting with eFlexApp!

iOS version

Pros & Cons

Bluetooth-based real-time monitoring and control
Supports multiple eFlexFuel models with version-aware features
RPM-based enrichment adjustments and driving-mode customization
Language, units, and theme personalization

Limited vehicle diagnostics charts and broad ECU data compared to some competitors
No explicit OBD-like scanning or advanced diagnostic features
Primarily focused on the eFlexFuel ecosystem with Bluetooth connectivity

About eFlexApp

eFlexApp is an auto & vehicles app developed by StepOne Tech Ltd.

Download Statistics

eFlexApp has been downloaded 41 thousand times. In the last 30 days, the app was downloaded 620 times.

User Ratings

eFlexApp is rated 3.47 out of 5 stars. The rating is based on 490 ratings.

App Information

eFlexApp is FREE to download. The APK download size is 18.25 MB. The latest version available is 2.2.13. The last update was on February 9, 2026.

Technical Requirements

eFlexApp requires Android 4.3+ or higher. The app has a content rating of Everyone. The app has been available on Google Play August 2020.

Description

With eFlexApp you can monitor your eFlexFuel device in real time. eFlexApp recognizes your eFlexFuel device version and offers different features with each product.

More data about eFlexApp

Price	Free to download
Total downloads	41 thousand
Recent downloads	620
Rating	3.47 based on 490 ratings
Ranking	Medium ranked
Version	2.2.13
APK size	18.2 MB
Number of libraries	9
Designed for Android	4.3+
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Alternative downloads for the eFlexApp app

eFlexApp compared with similar apps

Common keywords of similar apps

Enrichment Eflexfuel Cold Eflexapp Duty Cycle Ambient Injector Activity Status Driving Mode Save Created Eflextuner Software Eflexplus Setting Eflexpro Devices Eflexeco Eflexblue Direct Eflexmoto Adjust Based Selection Startup Privacy Policy Temperature Device Engine Rpm Monitor Ethanol Content Fuel Check Custom Information Bluetooth Support

Keywords missing from this app

App Car Time Torque Data Sensor Battery Real Tank Mix Trip Current Connection Scanner Charts Vehicle Tool Features Recent Blend Performance Gas Speed Fixed Pro Diagnostic Monitoring Works Adapter Vehicles Add Voltage Compatible Codes Live Consumption Control

Google Play Rating history and histogram

200

110

140

Downloads over time

eFlexApp has been downloaded 41 thousand times. Over the past 30 days, it averaged 21 downloads per day.

Changelog of eFlexApp

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Developer information for StepOne Tech Ltd

StepOne Tech Ltd

support@eflexfuel.com

Legal name:

Address:

Phone number:

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Comments on eFlexApp for Android

★★★★☆ Brian Cassidy · Jan 23, 2026

This company is the best for installing E85 to your vehicle. The app is great, I wish they would do more updates to the app to change it up every now and then. Other than that it works great. Have had no issues since I installed it on my 2010 Camaro SS. I definitely recommend this company for installing E85 to any vehicle you have. Love that you can run any mixture of fuel in it as well. Keep up the good work Reflex Fuel

★★★★☆ Pedro Maya · Mar 23, 2022

I like how I have my options to select start up and monitor my ethanol sensor percentage very neat simple easy to use. Sometimes it has a hard time connecting but otherwise the reflex plus is a great device and during this war with Russia and Ukraine I know has price will go up and e85 is still really low.

★☆☆☆☆ Chris G · Jan 24, 2025

Won't connect at all *edit after reinstalling and reconnecting app, Bluetooth it works now. **Edit again slowing trying to connect then it gives up. 1 star from 3.

★☆☆☆☆ Ossi Pärssinen · Aug 8, 2021

Initially worked. Now it says "you must connect to device named eflexfuel". In the list it shows device named Flex Fuel and does not want to connect.

★☆☆☆☆ Moises Recancoj · Oct 11, 2023

The app doesn't work properly. I have to Uninstall/ reinstall and then works. Whe I reinstall it works one time. So depressing.

★☆☆☆☆ C F · Feb 3, 2025

Doesn't connect fuel log don't work fuel map don't work add vehicle don't work 🙄 Cobb makes an E85 kit 👍

Google Play Rankings for eFlexApp

Top rankings

Rank	Country	Category	List
164	France	Auto & Vehicles	Top Free

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Ranking history in France

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Technologies used by eFlexApp

eFlexApp is requesting 14 permissions and is using 9 libraries.

Permissions

Your location

approximate (network-based) location, precise (GPS) location

Network communication

view network connections, pair with Bluetooth devices, full network access

System tools

access Bluetooth settings, prevent phone from sleeping

Extra

android.permission.ACCESS_ADSERVICES_AD_ID, android.permission.ACCESS_ADSERVICES_ATTRIBUTION, android.permission.BLUETOOTH_CONNECT, android.permission.BLUETOOTH_SCAN, com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE, com.google.android.gms.permission.AD_ID, com.steponetech.eflexapp.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Ad network libraries

None found

Social libraries

None found

Development tools

Android Jetpack core

Android Architecture Components

Android Jetpack VersionedParcelable Android Jetpack Annotations Android Library Icon

Android Jetpack Annotations Android Jetpack Widgets Android Library Icon

Android Jetpack Widgets AndroidX Activity Android Library Icon

AndroidX Activity Android Activity Saved State Android Library Icon

Android Activity Saved State Android Jetpack Media Android Library Icon

Android Jetpack Media Flutter Android Library Icon

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