We previously used Dy-know and I found it more robust. The one feature I miss the most is reporting. I often can't teach and monitor lightspeed at the same time. In dy-know as long as it was running you could run a report at the end of class (or for any designated time period week, month, etc) that shows exactly what websites a student accessed and how long they spent on that website. This allowed me to tell students they are being monitored and I can report and send info to parents if they are off task even if I don't catch them in the act at the time.