IP Widget URL Plugin is a free Android plugin developed by Dieter Thiess under the category of Utilities & Tools. This plugin is not a standalone app and requires the installation of IP Widget from the Google Play Store. The main function of this plugin is to call a URL when the external IP address changes.

To use this plugin, you can configure a URL with placeholders for the external IP address and Wi-Fi name. Once you have entered the data, you can save the settings, and the plugin setup is complete. However, if you want to monitor your external IP address changes while your device is connected to the same Wi-Fi all the time, you need to enable the manual update in IP Widget settings. This will allow the device to update data periodically and detect changes in the external IP address.

Overall, IP Widget URL Plugin is a useful plugin for those who want to monitor their external IP address changes and set up automatic URL calls. However, it is important to note that it is not a standalone app and requires the installation of IP Widget to function properly.