Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Invision - Prototyping and collaboration for design teams
Adobe XD - Adobe XD is an all-in-one UX/UI solution for designing websites, mobile apps and more.
Proto.io - Create fully-interactive high-fidelity prototypes in minutes that look and work exactly like your app should. Sign up for a free 15-day trial and get started.
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.
Balsamiq - Balsamiq. Rapid, effective and fun wireframing software.