I found a new(or rip) online diagram webapp tool ! Best4c (Best for chart) is really similar to Gliffy. It seems to be a Chinese team behind. There is less options but is a good alternative instead of Gliffy wich is now not free as it was in the past months.
Take a look, it’s interesting for the prototyping tool aspect.
1 | Debi K
We recently came across your blog post. Thank you for the mention of Gliffy in your description of Best4C. Gliffy does offer a feature rich, free account (the only limitation the number of diagrams). Give it a try http://www.gliffy.com/gliffy and let us know what you think - we pride ourselves in being responsive to users.
Thanks again for the mention–
