Built for Preply students and teachers. Upload your lessons, generate AI stories, or build custom vocab lists — and study with flashcards, quizzes, and native audio in any of 30+ languages.
No credit card required. Works with any language and any teacher.
Hi, I'm Nick, the founder of Blantonia. A while back, I challenged myself to take 90 Italian lessons in 90 days on Preply. I wanted to see how far I could push my Italian in three months.
It worked — sort of. I got way more comfortable speaking. My fluency jumped. I could hold real conversations. But I noticed something frustrating: I wasn't actually absorbing everything my teachers were giving me. I'd learn a great phrase or grammar tip in one lesson, then completely forget it by the next. We kept circling back to the same words and structures because nothing was sticking.
The problem wasn't the lessons. The lessons were great. The problem was what happened between them — nothing. No review, no reinforcement, no way to capture the gold from each session.
So I built Blantonia. Now after every lesson, I upload the recording. Within minutes I have a transcript, AI-generated flashcards of every useful phrase from that session, native audio for each one, and three study modes to drill it in. I stopped repeating myself with my teacher. I started building on what I learned instead of relearning it.
This is for everyone who's serious about getting the most out of every minute with their tutor.
Whether you're reviewing a real tutoring session or studying on your own, Blantonia meets you where you are.
Upload audio from your Preply session. We transcribe it, extract the best vocabulary and phrases, correct mistakes, and generate flashcards with native audio — all tailored to your level.
Describe a topic and the AI writes a complete story in your target language. You get the full audio narration, a transcript, and flashcards pulled from the story — like having a private tutor who writes custom content just for you.
Just say "kitchen" or "business meetings" and get 25 or 50 vocabulary cards instantly — each with a translation, audio, and difficulty matched to your level. The fastest way to build vocabulary on any topic.
Flashcards, quizzes, or auto-play listening — each mode helps you retain what you learned in different ways.
Classic flashcards — flip between your language and the target language. Choose which side shows first, shuffle, and mark your mastery level as you go.
Test your knowledge by typing or choosing the correct answer. Pick 10, 20, or more questions. Write-in mode or multiple choice — perfect for any script.
Auto-plays through your cards with native audio. See both languages, hear the pronunciation, and rate each card — hands-free review while you commute or cook.
Blantonia adapts to you. Set your proficiency level and the AI generates cards that match — simple vocabulary for beginners, complex grammar and idioms for advanced learners.
Blantonia works with whatever language you're learning. Upload audio from any lesson and get cards in your language pair.
The AI doesn't just copy your transcript — it corrects mistakes and produces natural, memorizable phrases. Literal translations show you how the language actually works.
Beginner? You get single words and simple phrases. Advanced? Idioms, grammar nuance, and cultural context. Set it once — it applies everywhere.
Mark every card as New, Needs Work, Known, or Mastered. Filter your study and quiz sessions to focus exactly where you need it.
Every card and every AI story gets native-sounding audio. Pick from 11 voices, preview each, and set your favorite.
Quiz yourself by typing answers or picking from multiple choice. Accented character buttons built in for every language. Great for scripts you can't type yet.
Don't like a card? Tap regenerate and pick from 4 AI-generated alternatives — instantly replaced with new audio. Keep only what's useful.
Try Blantonia risk-free. If you use less than half of your included minutes and request a refund within 7 days of subscribing, we'll refund you in full — no questions asked.
Your first lesson is free. No credit card required. 7-day money-back guarantee on all plans.
Are you a language teacher? We built Blantonia to complement your lessons. Help your students retain more between sessions by recommending a tool designed to work alongside live tutoring.
Learn How We Work With Teachers