LingoLingo: Turn YouTube into your language learning playground

Hello PH!

I built this app to unlock the potential that YouTube has for language learning. After all, where else can you find millions of videos in basically any language, for any topic that you can imagine, often made by native speakers?

My initial frustration with YouTube was that I couldn't copy the subtitles in the app. After tackling that, I also added select-to-translate for convenience and web lookup for things that are not in a dictionary (names, current events, slang). What really took LingoLingo to the next level though was the addition of automatic exercises that pop up as you watch.

These exercises get created automatically when you open a video. So instead of random sentences (like in a certain owl-themed app), the exercises in LingoLingo are based on real-world content and natural language. This allows for a powerful combination of immersion and immediate reinforcement, which is scientifically proven to boost language learning.

We've been testing with around 100 users on iOS and Android for the past six months, and I feel like it's ready to share publicly for the first time.

Happy to hear your thoughts and to answer questions. Enjoy!