Free Mac program: https://prezi.com/desktop/
Free Windows program: https://prezi.com/desktop/
Website: https://prezi.com/
Google Chrome app: https://chrome.google.com/webstore/detail/prezi/acoonfmhnndodekhecidldfdjgooefpg
Website: http://www.wordle.net/
Paid iPad app: https://itunes.apple.com/us/app/pixie-by-tech4learning/id609012680?mt=8&uo=4&at=10l6SU
Paid Android Phone app: https://play.google.com/store/apps/details?id=air.com.t4l.wixie.PixieMobile