How It Works
Three simple steps to transform how you learn languages
Import Your Content
Add any YouTube video, import books in .epub or .pdf format, or generate AI stories perfectly matched to your level—complete freedom over what you learn.
Practice with Precision
Our proven spaced repetition system schedules reviews at scientifically optimal intervals—you'll remember words longer with less effort.
Track Real Progress
See your vocabulary grow day by day, monitor time spent learning, and celebrate meaningful milestones—not artificial streaks.
Everything You Need to Succeed
From YouTube video transcription to AI-generated books, we've got all the tools to make language learning engaging and effective
Learn from Any YouTube Video
Unfortunately not every video on youtube has the subtitles you need. We can transcribe any video and give you dual subtitles in your language and English.
Your Personal Graded Reader
Import any book in .epub or .pdf format. You can also generate custom AI stories perfectly matched to your level. Click any word for instant translations and save them to your vocabulary list. It's reading made effortless!
Never Forget What You Learn
Our spaced repetition system knows exactly when to review each word. You learn by forgetting! We will give you daily reviews of words using spaced repetition so that you fully understand the word and remember it for a long time.
Perfect For Every Learner
Whether you're just starting or already fluent, Langadoo adapts to your goals
Simple, Transparent Pricing
Start free and upgrade when you're ready for more
What Makes Us Different
Built for serious learners who want real results
50+ Languages
Any Language, Equal Features
From Spanish to Serbian, every language gets the same powerful tools. No second-class support for less popular languages.
Proven SRS
Science-Backed Learning
True spaced repetition that works—schedule reviews at optimal intervals based on how well you know each word, not arbitrary daily goals.
Your Content
Complete Freedom & Control
Import any video or book, create custom decks, and own your data. No proprietary courses—learn from content that actually interests you.
Packed with Powerful Features
Got Questions? We've Got Answers!
Everything you need to know about Langadoo