Rated Best App Maker, The Easiest Way to Create an App - appsbar. Glogster EDU - 21st century multimedia tool for educators, teachers and students. Upload & Share PowerPoint presentations and documents. Prezi - The Zooming Presentation Editor. Unitag QR Generator- Create fancy QR Codes for free - Check out Premium access - Unitag - Connect to the world. Tagul - Gorgeous tag clouds.