Barcode attendance using MSS Software's attendance tracking kits. You can track attendees at seminars and conferences with Seminar Tracker or Certification Tracker. If you need to track student attendance, check out our economical Student Attendance Tracker. Use MSS Software's Check In/Check Out to log people in and out of facilities or use our Ticket Checker , if you need to prevent duplicate ticket use during events. Just give us a call at 800-428-8643 to discuss your attendance tracking needs.