A small but useful feature that I think Plickers should add is to display feedback immediately after students answer each question (e.g., “Correct!” or “Wrong, the correct answer is B”).

This will help students learn from their mistakes immediately, instead of having to wait until the end of the test. Teachers can still turn this feature on/off depending on their teaching purpose (quick test or review).

I believe this feature will increase student engagement and interest in each Plickers lesson.
@Golf Hit