Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Sketch - Professional digital design for Mac.
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Invision - Prototyping and collaboration for design teams
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.