Ultimate UI is a free user interface designed in Sketch by the guys at UX Lead.
The UI kit includes various user interface elements such as a video player window, calendar, user admin panel, statistics panel, charts widgets, world map panel, dialogs, buttons, alerts and much more.
The UI kit is available in .sketch file format.
You can use this UI kit for free in your personal and commercial projects.
Download UI kit (zip, 17.8 MB)
You may also like this Sketch landing page UI kit, that includes over 80 layouts in different categories most used in creating landing pages