it's possible that you haven't purchased the Flashcard Add-on yet. To save money on other dictionaries, you could also consider getting the Basic Package, which includes the Flashcards Add-on. It's a one-time purchase without any subscription.
If you're a serious student of Chinese, get the full package.
It's well worth the money, especially since you don't have to carry around those dictionaries. I find having access to multiple dictionaries very useful as the definitions are sometimes a little different. Each version helps me understand the character more, or I can focus on the definition I find easiest to remember.