Choose from our large library of TED talks or import any video you want.
Caterpillar automatically generates your subtitle-based language curriculum.
Practice your skills with listening, writing, and speaking exercises.
We love watching movies and TV series. When learning a language, a movie is a great way to learn vocabulary, tune your accent, and get better at understanding native speakers. The problem is that you can watch an entire film and not improve at all. It's inherently a passive activity.
Do I really understand every word spoken?
Can I write exactly what was spoken without spelling or grammatical mistakes?
Do I sound like the actor when I repeat what they said - accent and rhythm?
You can add any film to Caterpillar and it will be broken up into short sections and segments. The app uses excercises to test all three skills (listening, writing, and speaking) and shows you your weak points according to a spaced repetition algorithm - just like Anki does for flashcards.
Some people describe Caterpillar as the next step after Duolingo because you are finally learning with material that native speakers use.
It is rewarding to watch an entire foreign movie and understand every word without the need for subtitles. Caterpillar makes this happen.