Briefs For Mac

Briefs is a smooth-running toolkit designed for rapidly building and iterating app prototypes for the iOS devices.

These prototypes run directly on the simulator, like actual apps, but require much less time and code to produce. Less code means faster cycles and cheaper development.

The purpose of Briefs is to create better apps that have a tested interaction design before they are built. Unlike traditional mockups, briefs are used just like an actual app not just seen.

And because they use the same frameworks that regular apps are built upon, briefs can potentially take advantage of animation, device rotation and gestures. You can even design the experience around app interruption due to an incoming phone call.