Be aware that the concept of this app is not that focused 🤣🤘🏼. There are two major use cases:

Learning to spell:

Configured in Level 1 or 2 it is a neat quiz to learn to spell words using the nice emojis provided in four different brands (👧👦 and 👩‍🏫👨‍🏫).

Getting to know all the emojis:

Configured in Graduate Level 3 it shows all the emojis with their more or less official Unicode names (👩‍🎓👨‍🎓).

There are several quiz modes and options. You can either show the emoji first and guess the name or you can show the name and then see the emoji. The set of emojis can be chosen (e.g. only show food or clothing emojis).

But rather than reading this long description, just go on and download it from the App Store. It's free.