Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
userinput.io - Get on-demand feedback for your app, website or idea. Learn how to improve by hearing real opinions.
Sketch - Professional digital design for Mac.
UX Timeline - See how some of today's best companies have evolved
Invision - Prototyping and collaboration for design teams
UXReality - UXReality: One App Instead of Lab