This new app - if it is launched - will bring the photo sharing site's inbox feature into its own app, similarly to how Facebook created a new messenger app to improve the user experience.
It is currently being tested in Chile, Israel, Italy, Portugal, Turkey and Uruguay but is not known yet whether it will be rolled out to all countries.
When you install the Direct app, it transfers you direct messages on Instagram from the man app to the inbox in the Direct app. And from then, when you press on the direct button in the main app, it will open up the new app.
Hemal Shah, a product manager at Instagram, told The Verge: "We want Instagram to be a place for all of your moments, and private sharing with close friends is an important part of that. Direct has grown within Instagram over the past four years, but we can make it even better if it stands on its own. We can push the boundaries to create the fastest and most creative space for private sharing when Direct is a camera-first, standalone app."