Langit

What it does

Langit is a language learning app with many features designed to help the user acquire a new languages quickly. The user can learn with learning guides, practice with interactive quizzes.

There is also a chatbot powered by the Gemini API. To keep the API key safe, it is not called from the app directly, but through cloud functions. With the use of "systemInstruction", Gemini gets explained that it's job is to help user learn language X, and context from previous message of the conversation is provided.