This app runs in your desktop, so it works OFFLINE!:) It lets you create Flowcharts, Basic Drawings, Network diagrams, venn diagrams and MANY more options.
For teachers that need their students to compare or create ideas for writing a paper this app is GREAT to use! It is very easy to start using, and if you need help just google "Gliffy diagrams tutorials".
Jacob Staines, HS Tech Team Member