Wow, nice comparison grid! ForeUI does have a free trial and their price is higher than shown here, but a great article. Thank you!
Been using it for some time now and it's much better than Axure and Balsamiq
Very simple to use, yet powerful, specially to prototype highly interactive applications.
Great product all around. Shows many signs of having been designed by people who do prototyping themselves.
Apple's Keynote has many of these features. And it may already be on your computer. Use that with mu iOS GUI Elment Kits: appmockuptools.com/... or get back to pen and paper with:appmockuptools.com/...
Would like to see appmockuptools.com. Easy to drag and drop with clickable interactive and completely editable iOS GUI Elements.
Prise en main très rapide, je suis pleinement satisfait.
Here is a new one justinmind.com/... it's completely free and great to build clickable mockups for web and mobile apps. It has a good collaboration feature as well.
Current version 6 could be faster and with more search tools (i.e. to find a page to link)
great for quick sketchy wireframes. Clients won't mistake these for final designs ;)