CritiColl: The fastest, safest and most accurate method of attendance. What makes CritiColl great? A speedy and efficient method of attendance (classes of 100+ students can take attendance in less than 20 seconds); a Smart Classroom Communicator where professors can upload important PDF files, make announcements, and organize due dates, all of which students will have instant access to; and a Live Class Data where our system provides professors, in real-time, the daily, overall, and weighted attendance grade for your students. Better yet? CritiColl is FREE for students and professors. Join CritiColl today and let us upgrade your classroom.