Kartoffel lets you work and study in Germany, explore Germany, and speak, read, write and understand German.
Your AI German teacher learns how you learn, explains what you don't understand, remembers your mistakes and speaks with you whenever you want.
Never learned German? Start from zero — thirteen short lessons, like the first weeks of a class: the ABC, hello, your name, numbers.
A teacher who remembers you · no sign-up to try
Guten Morgen! Was darf ich Ihnen bringen?
First you notice. Then you understand.
No rule tables up front. Every lesson starts with something to spot — the rule arrives the moment you're curious about it.
- 01Discover
You notice the pattern yourself before any rule appears.
- 02Understand
Colour, shape and motion show what each word is doing.
- 03Use it
Minutes later you say it out loud in a real situation.
Can you spot the difference?
Tap the word that changed.
Not a chatbot. A café in Kreuzberg.
Talk out loud with characters who have a job to do. They slow down when you struggle, push you when you're flying, and quietly write down every mistake for later.
- Roleplays: café, hotel, doctor, job interview, Bürgeramt…
- Four correction styles, from relaxed to teacher mode
- „Help me“ gives hints in four steps — never the answer first
Four correction styles, from relaxed to teacher mode
„Help me“ gives hints in four steps — never the answer first- Greet the waiter
- Ask for the menu
- Order a drink
- Order food
- Ask one question
- Ask for the bill
Kartoffel noticed- Er hilft mich.→Er hilft mir.speaking · Tue
- Das gefällt mich.→Das gefällt mir.writing · Wed
Every mistake becomes a lesson.
Say „Er hilft mich“ in a conversation on Tuesday. On Wednesday it's in your review. On Thursday Kartoffel steers the conversation so you need „mir“. Five times right in a row: this weakness is becoming a strength.
Everything you do feeds everything else.
Twelve steps, one loop. A mistake you make while speaking on Tuesday shapes the exercise you get on Wednesday and the conversation you have on Thursday.
- 1DiscoverSpot the pattern in a real sentence before any rule appears.
- 2LearnThe rule arrives the moment you're curious about it.
- 3See examplesReal sentences show the pattern at work, in colour.
- 4InteractDrag, swap and build sentences with your own hands.
- 5PractiseExercises that get harder as the pattern gets stronger.
- 6SpeakUse it out loud in a live conversation, minutes later.
- 7Make mistakesEvery slip is welcome — it tells Kartoffel what to teach.
- 8AI analysesKartoffel sees the pattern behind the slips, not just one.
- 9Targeted practiceExercises built from your own mistakes, nobody else's.
- 10Review in timeIt comes back right before you would have forgotten it.
- 11Real conversationKartoffel steers the talk so you need it again.
- 12MasteryFive times right in a row, unprompted. Now it's yours.
A teacher who remembers every mistake you've ever made.
A structured CEFR journey from A1 Berlin to C1 Wien.
Grammar you can touch: drag, swap, watch articles transform.
Words taught in situations, reviewed right before you'd forget.
Realtime voice roleplays that adapt while you talk.
Not „72%“ — „your CH sounded like English SH“.
Travel through German.
Build your first German world.
Handle everyday life in German.
Start thinking and communicating independently.
Express complex ideas naturally.
Use German professionally and academically.
Your first German
conversation is today.
Four minutes of setup. Then Kartoffel takes it from there.