Loops Feedback - Feedback on design ideas in minutes via 110m+ people
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Storydoc - Easily generate interactive decks and presentations that increase lead engagement and conversion
Sketch - Professional digital design for Mac.
Feedback by Pixelic - Painless design feedback and version control.
Invision - Prototyping and collaboration for design teams