Snap Kit is a set of developer tools...
That let you easily share Snaps, Stories, and Bitmojis with your favorite apps or from apps and websites to your Snapchat account! When you choose to connect to an app or website, you can review the information that is shared through Snap Kit. You can also remove an app or website’s access at any time right in Snapchat settings.
If you haven’t opened a connected app or website in 90 days, we’ll remove its access, but you may need to contact the developer if you have questions about any data that has already been shared.