This is an app for creating your own flashcards. It is possible to add multiple images, but it is not possible to do it with a video. You can add the audio, but it is not in MP3 format, it is WAV.

The idea is to create a flashcard that contains all the vocabulary, grammar and literature that you want to study. To create the flashcard, you can choose any image that you think is related to the content and add it to the card. To study, you just have to click on the image and the app will read the content.