Chris found Quizalize:

• Significantly improves attainment“Quiz and test scores tend to increase when I use Quizalize. I am able to help students in skills and topics they need to improve on as opposed to generic blanket review that isn't targeted to individual student needs.”
• Significantly improves teaching efficiency and productivity“I used to use a spreadsheet to help me understand what questions and skills need to be addressed for which student. Now the mastery dashboards and quiz data give me the same information in real time.”
• Significantly reduces teacher workload“I use Quizalize along with Kahoot! and Socrative and they all save time on printing and grading. But the data I get from Quizalize is far deeper and useful which saves time trying to analyze the data and personalizing my teaching.”