From InVision Cloud, you can quickly download an individual screen—or even previous versions of a screen.
Currently, it's not possible to download Studio screens from InVision Cloud. However, you can export layers or entire artboards from the Studio desktop app. To learn more, check out this article: How do I export images directly from Studio?
To download a specific prototype screen:
Within a prototype, select the screen you want to download.
From the bottom navigation, click the History mode icon ().
Right-click the screen and save the image to your computer.
Within History mode, you can also view previous versions of a given screen and download any version by following the same steps.