Mastercom is an italian company which provides services to schools (i.e. register-logs). One of these services is a website named "Workbook" (in italian "Quaderno Elettronico") made for students to access marks, timetables, files... This app is an Android client that wraps around the website and is able to show subjects, marks, topics, homework, timetables, events and documents. It is lightweight (~5MB) and uses Material Design.

Quadermas