Sprout Studio helps you understand your business at a whole new level by using tracking technology to see whether or not your client has made a download from the gallery. This function only tracks the entire gallery download as a whole and not each individual image.
On the right-hand side of the Gallery page, when the client has logged in and completed the download, you can see how many times it has been requested.
Note: This field only shows up if there was a bulk download requested. The badge won't appear if there wasn't any files requested.