eFlexApp is a free Android app developed by StepOne Tech Ltd, designed to provide real-time monitoring for eFlexFuel devices. The app recognizes the eFlexFuel device version, offering different features for each product. With eFlexApp, users can monitor the ethanol content, duty cycle, fuel and ambient engine temperature, injector activity, and cold enrichment.

Users can also adjust the eFlexPlus and eFlexPro devices, change language (English, French, Finnish), temperature unit (°F/°C), and theme (light/dark). eFlexApp is compatible with eFlexEco, eFlexBlue, eFlexFuel, eFlexPlus Direct, eFlexBlue Direct, eFlexPlus, eFlexMoto Plus, eFlexPro, and eFlexMoto Pro devices.

The app communicates with the eFlexFuel device via Bluetooth, requiring permission to use Bluetooth. Users can check the device status and startup information, but the review must not contain any personal information or ask the reader to contact the developer. For feedback or assistance, users can reach out to