Finally know how good your language actually is
Björn reviews every session and grades your level along the CEFR scale — so “getting better” stops being a feeling and becomes a number you can watch rise.
Free to start. No credit card required.
“Learn from my own interests?
Game-changing.”
Streaks measure showing up. CEFR measures ability.
A 400-day streak tells you that you opened an app 400 times — not whether you could survive a job interview in German. The CEFR scale (A1 to C2) is how the rest of the world measures language ability: universities, employers, visa offices and language exams all speak it.
Björn grades your actual performance — the language you produce in real conversations — along that same scale, so your progress is measured in the currency that counts.
A review after every session
After each conversation, Björn shows you what went well, what to work on, and how your level is trending. Recurring mistakes are surfaced instead of silently repeated, and the words you struggled with are already waiting in your flashcards.
Over weeks, the session reviews add up to something rare in language learning: an honest, evidence-based picture of your ability — and proof, on the days it feels like you’re stuck, that you aren’t.
Feedback that feeds forward
Tracking isn’t the goal — improving is. Your reviews shape what Björn does next: conversations stretch you where you’re strong, reinforce where you wobble, and stay just past your comfort zone, which is where growth happens.
If you’re working toward a real exam or requirement — Goethe, DELE, DELF, norskprøven, inburgering — CEFR-graded practice means you always know the distance to the finish line.
CEFR-graded sessions
Your level, A1–C2, judged from the language you actually produce — the scale exams and employers use.
Session-by-session insights
See what improved, what to fix, and how you’re trending after every conversation.
Mistakes become curriculum
Recurring errors are surfaced and turned into targeted practice instead of quietly fossilising.
Motivation from evidence
Watch your level genuinely rise — the most honest motivation a learner can have.
Features you
will love
Real-world
conversations
Have flowing, natural conversations
with the world's highest quality voices
Highlight,
translate, save
For any word or phrase - translate, save,
and lookup forms and tenses
10+ languages
supported
More added on request.
What do you want to learn?
Review and track
daily progress
Gain insights for each session and track
progress over time (~CEFR grading)
Next-gen wordbook
& flashcards
Dynamically generated
from your own interests
Everything you need to
succeed in one platform
Listen,
improve
Compare your speaking with
Björn's native voice
YouTube captions.
Save, learn, use.
Watch your favourite YouTubers and
save their words to learn later.
Learning has been
upgraded![]()
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Björn lets you focus on learning what you care about,
not about keeping a streak unbroken.
Lessons shaped around your interests
Word-by-word pronunciation scoring
Match your intonation to native speakers
Learn words from YouTube videos you watch
Highlight any word for instant translation
Real conversations from day one
Feedback on grammar and word choice
Built for language learning
No streak pressure
- no credit card required -
FAQ
Find quick answers to common questions about features, plans, and more.