Use apps (previously known as "integrations") to connect your project to other popular tools or your internal flows. You can access this feature by navigating to Apps in the main menu.

Also on the projects page you'll see a list of installed apps for every project:

There are several types of apps available.
Cloud file storage
Content management
Designer tools
Developer tools
We provide tools to use in your scripts and frameworks. See specific integration docs for details. Examples of developer tools are:
Mobile SDKs
Some of the integrations provided are developed by third parties. We do not provide support or warranty for third-party integrations.