I am working on an English learning app. I combine flashcards like Anki with Duolingo-style motivation: leagues and streaks. Plus, integrated Giphy and a Telegram bot. Of course, we use the OpenAI API. Also, as an idea for selecting words to learn, we parse movie subtitles with AI and find cool phrases and words to learn before watching a movie in English (as a second language). The app has Russian translations and UI. My goal is to create the best online dictionary for English learners. We use a crowdsourcing approach where anyone can suggest a cool illustration for any word or phrase and add any word or idiom to learn.

https://gem-words.com/