Adobe Xd is an application for user experience design and prototyping.
Paid • Proprietary
What is Adobe XD?
Adobe XD (Experience Design) is a vector-based tool developed and published by Adobe Inc for designing and prototyping user experience for web and mobile apps.
Wireframe, design, prototype, present, and share amazing experiences for web, mobile, voice, and more — all in one app. XD is made for designers, creative teams, and organizations that need to design at scale. It’s everything you need to work more efficiently, collaborate effortlessly, and create and manage your design system.
Adobe XD has a companion app for phones that allows you to view and interact with your projects as visual prototypes called Adobe XD Mirror
Compared to market leaders like Figma and Sketch, Adobe XD is buggy. It's also tied to Creative Cloud, so if you've ever dealt with annoyances around licenses and DRM protection, be prepared to deal with that here.
Go with an alternative.