Quizlet Teacher offers extra features for teachers and their students.
For $25/year your students won't see ads on sets you create, you can search teacher-created sets, create unlimited classes, upload images on your sets, record your own audio, view class progress, receive early access to new features, faster support, and a Quizlet Teacher badge next to your username.
To upgrade, go to your Settings and click on "See Upgrades."
Please note: Upgrading to Teacher is a one-time payment; you are not automatically renewed. Should you decide not to renew the following year, you will still be able to access all of your flashcard sets with uploaded images and recorded audio - however you will not be able to upload new images or record new audio.