How do I add flash cards to my app?

How do you insert flashcards into your app? I saw a post on the community about a flashcard app, but i just want to have flash cards in it, not the app be about flashcards. The responses I found were not too helpful and were a bit confusing. For the flashcards, I wanted for the user to click on the card, and then it flips and reveals the answer, and the user clicks the next button to go to the next flash card. Any ideas on how I could do this? Thank you for your time.