Which tool can be used to supervise iOS devices effectively?

Apple Configurator is specifically designed for the deployment and management of iOS devices, making it the most effective tool for supervising these devices. This application provides essential features that allow administrators to configure and manage multiple iOS devices efficiently. With Apple Configurator, users can streamline the onboarding process, install apps, enforce policies, and push settings and configurations to devices.

The tool supports the supervision of devices, which is a special mode that enables additional management capabilities. For example, when a device is supervised, it can receive restrictions and profiles that are not available to unsupervised devices, allowing for a higher level of control over the device’s use and settings.

In contrast, while Xcode is primarily a development environment for creating applications, it doesn't focus on device management or supervision. iTunes, historically used for syncing and managing content on devices, has largely been replaced by Finder on macOS for similar tasks, neither of which includes features specific to supervising iOS devices. Finder, like iTunes, primarily interacts with content and backup rather than providing the extensive management functionalities found in Apple Configurator.

Overall, the focus of Apple Configurator on supervision and device management makes it the superior choice among the available tools for effectively overseeing iOS devices.