Proto.io
Quick prototyping tool for multiple devices with support for animations.
Patternry
Collaborative design patterns.
Keynotopia
Enhances prototyping capabilities of Keynote.
Vine
6 second videos. Can be saved straight to camera roll without sharing.
Notism
Design collaboration tool with Basecamp integration.
Spacedeck
Visual collaboration for teams.
How Do
Capture images and record voiceovers to create short guides.
TogetherJS
Real-time collaboration for websites.
Webflow
Browser-based, drag-and-drop, responsive website tool.
FROONT
Browser-based, responsive website prototyping.