Add-On: Vsmart is an additional program to TeamViewer QuickSupport, developed by TeamViewer. It is a free app available on Android devices. This app is not a standalone software and can only be used with TeamViewer QuickSupport.

The Add-On: Vsmart is designed to provide remote support for Vsmart devices. It allows the support technician to access the device remotely and troubleshoot any issues that the user may be facing. The app enables the technician to transfer files and folders between devices, access device settings, and perform various support tasks.

Overall, Add-On: Vsmart is a useful addition to the TeamViewer QuickSupport app. It provides support for Vsmart devices and enables users to receive remote assistance from technicians. However, as it is an add-on, users must already have TeamViewer QuickSupport installed on their device to use it.