Webix works equally well on desktop and touch devices out of box.
Touch support is enabled in all the Webix components with the touch events being translated into native Webix ones to ensure their flawless work. For instance, when you tap a list item, the onItemClick event fires for it. If selection is enabled for this list, list item is selected.
Touch events are controlled by Webix Touch module where configuration for different aspects of touch behavior such as touch speed, touch and scroll delay can be changed.
Also the module allows for disabling Webix touch events in favor of native ones in either of the two ways: