Using a Seating Chart, Tracks School Homework (by tapping: green=handed in, yellow=partial, red=not handed in) and Class Attendance (green=in/red=out/yellow=late), also randomly picks and groups students. Random picking now attempts to not pick (in a given day) any student more often than any other, so you should no longer get the same student picked 3 or 4 times while another student is never picked. A summary multi-day on-screeen report is also available for homework and attenance.
This was designed by working with a teacher who had a need for something like this, and more improvements are planned, feedback (negative and positive) is welcome.
This is not a service, there are no subscriptions at this time, and there is no remote storage of your data. Some basic documentation is at http://StudentCentered.info