Never heard of it so what is this?

Tracy • TECTA and CDA certified. Full-time teacher. A certified toddler specialist but I also specialize in my hubby😝
I take <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> quizzes just for the fun of it but the answers I get are sometimes confusing in that I don't always know what is being talked about so what is this?