Invision - Prototyping and collaboration for design teams
Day One - A simple journal application for the Mac, iPhone, and iPad. AboutTo learn more about Day One, see these two excellent reviews . PublishPublish is not available in Day One 2.
Proto.io - Create fully-interactive high-fidelity prototypes in minutes that look and work exactly like your app should. Sign up for a free 15-day trial and get started.
Journaly - The customisable journal app
Zeplin - Collaboration app for UI designers & frontend developers
Journalistic - A simple, yet powerful micro journaling app