After using Showbie for the past 2 years, it truly has revolutionised the way I teach, and more recently the way I mark and feedback on work. I also train other Teachers and show the app, for them to then use in their classrooms. The fact that the children take the iPads home (quite unique for a primary school) further allows for communication. The result of showbiz has seen increased attainment scores over the previous years.
I am most certainly an advocate for Showbie.