# Standalone mode

In standalone mode, Efento loggers measure and store data in their internal memory. Users can simply approach the device with a mobile phone or tablet to read the measurements or change the logger’s configuration.

To use the logger in standalone mode, the user must install the Efento mobile application from [**Google Play**](https://play.google.com/store/apps/details?id=pl.efento.cloud\&hl=en) or the [**App Store**](https://apps.apple.com/pl/app/efento/id6479740909).

After launching the app, select the **“Nearby devices”** mode to begin using the logger.

{% hint style="warning" %}
To use the mobile application with Efento loggers, you must grant permission for the app to use Bluetooth. **The app will request all required permissions during the first startup**. Without these permissions, the application will not be able to communicate with the devices.
{% endhint %}


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