According to the website, it is currently in beta for a limited time. You can use all the features in the product for the time being. After the beta period, they will decide if some free functions will possibly be restricted in its use. So do be prepared for the site to change in the future. Keep an eye on the site for more information.
Read more http://www.whiteboardblog.co.uk/2012/12/make-word-clouds-with-typoeffects/
Mark up websites, graphics, and photos, or start brainstorming on a blank canvas. Browse the web with your friends or make that conference call more productive than ever. No plug-ins, downloads, or firewall voodoo - it's all here, ready to go when you are. Browser-agnostic, user-friendly.