The Justinmind (JIM) folks are keeping up the heat with improvements to the best prototyping tool around. Don’t confuse prototyping with wireframes. They have added training wheels to allow those who don’t use it regularly to be “Stepped” through how things work. These training wheels can be taken off for those who already ride the JIM bike. They have improved Scenarios with the ability to add images and a full-screen editing. They have improved Requirements by allowing a single requirement be attached to multiple elements of a page. Last they added a real Bootstrap UI no more using a user-created widget library from 4 years ago. Keep your eyes open for some “Techniques” videos on JIM from our training branch.