The Unravel Van Gogh app enables users to delve deeper into the history of the artworks by the Dutch painter. It features different sliding visuals of paintings that reveal the differences between the original work and its current state, for example. Users only need to click on the control point in the middle or at the bottom and drag the mouse in the given direction. Via a “Read more” button, they can then get additional background information on each image. The operation is self-explanatory, with small text boxes indicating the required mouse action for triggering particular action.