Project for teachers

Hey guys,
I've created my little project for teachers. This app allows sending mass text messages to the students, so teachers can remind important tests and exams or specify the time of departure to school trip and so on.. I've been inspired by American 'remind.com' which is not running in my country. 'Reminder' is just an unofficial name. Thanks to my mentor @Martin Halík for dribbble invite :)

Here is marvel prototype: http://marvl.in/2086fb