# Usage Specifics for License Types

Currently there are two main types of licenses used for UI for WinUI - **Developer** and **Trial**. The license is applied through a license key installed on the developer's machine. See how to install a license key in the corresponding [help article](https://www.telerik.com/winui/documentation/installation-and-deployment/licensing/installing-license-key).

The free **Trial** license of Telerik UI for WinUI gives access to all functionalities of the product and it will work for an unlimited time. However, once the trial period expires a trial message banner along with a watermark overlay will be displayed.

During the active trial a banner will display on startup of the application.

![](https://www.telerik.com/winui/documentation/assets/2107026e548a47acbdae9c3057d121fa/license-limitations-0.png)

After the trial expires, the a message box and a watermark overlay are displayed.

![](https://www.telerik.com/winui/documentation/assets/ad3a0dac9f694f7ad7b6fe63e0ffceaa/license-limitations-1.png)

## See Also

* [Installing Telerik UI for WinUI with NuGet](https://www.telerik.com/winui/documentation/getting-started/first-steps-nuget)
* [Installing Telerik UI for WinUI from the MSI File](https://www.telerik.com/winui/documentation/getting-started/first-steps-msi)
* [Installing Telerik UI for WinUI from the ZIP File](https://www.telerik.com/winui/documentation/getting-started/first-steps-nuget)
* [Installing Telerik UI for WinUI with the Telerik VS Extension](https://www.telerik.com/winui/documentation/getting-started/first-steps-nuget)