What are some alternatives?
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
Knowify - For trade contractors and remodelers looking to run their businesses in a professional and modern way. All-in-one solution with real-time insights.
SmartDraw - Instead of starting with a blank screen, SmartDraw gives you the exact template you need.
CoConstruct - CoConstruct's project management software helps custom builders & remodelers coordinate projects, communicate with clients & crew, and control.
iRise - iRise combines fast prototyping with integrated requirements management to ensure you're managing the right requirements and user stories.
JOnAS - JOnAS is a leading edge Java EE 5 certified Open Source OSGi Enterprise Server by OW2.