Learn German — and pass the DTZ on your first try
Smart vocabulary repetition, a grammar route, 12 trainers — plus the full DTZ exam with a live AI tutor. Explanations in your language, works offline in the app for iPhone and Android. Free.
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Learn offline — on the subway, on a plane, anywhere
Download German words, audio, and citizenship test questions — and practice without internet. Progress syncs as soon as the network is available again.
Coming soon to App Store and Google Play · Already available — directly in your phone's browser
- Offline word practice — with a real voice
- Dictionary and "Leben in Deutschland" test offline
- Audio series download and listen offline
Here's what it looks like
Real app screens — no frills
All 4 skills — in one place
Hören, Lesen, Schreiben, Sprechen — exactly 13 parts of DTZ, just like in the real exam.
Hören · Listening
200 audio tasks, clear Hochdeutsch from Azure neuro-voices. Teil 1–4 as in the exam.
Lesen · Reading
Announcements, short and long texts — 50+ variants with analysis of each trap.
Schreiben · Writing
Letters of all types + structure check. And AI will analyze your letter from a photo or text.
Sprechen · Speaking
Tell about yourself, describe a picture, plan with a partner, and free dialogue with AI — by voice.
Grammar as a game — planet by planet
A space route through grammar: work topics in order, unlock new planets, pass stage tests and module bosses. From A1 to B1, step by step.
Leben in Deutschland
Citizenship-test trainer (Einbürgerungstest): the official 33 questions — Learn, Exam simulation and Review-mistakes modes.
Listen to German like a podcast
Three series with recurring characters: first the phrase in German, then the translation — or only German, like a real podcast. Tap on a sentence to hear it again.
Not just flashcards — a real conversationalist
Speak German, and AI responds, corrects, and explains in Russian — every step of the way.
AI Speaking Partner
Everyday situations: pharmacy, doctor, Bürgeramt… You speak, the partner responds in character and leads the dialogue.
Coach on every reply
Made a mistake? The AI will immediately show you how to improve and explain why. No idle chatter.
AI Letter Check
Snap a photo of a handwritten letter or paste text – get an error analysis, coverage of points, and an exemplary B1 version.
Picture Description Analysis
Describe a picture (Sprechen Teil 2) – the AI will assess point coverage, level, and suggest what was missing.
Sounds like real German
Every word and dialogue is voiced by Azure neural voices – with accents from Germany, Austria, and Switzerland. Get used to natural speech, not a robot.
6 voices · "random accent" mode for ear training.
Smart Repetition
Each word lives in a Leitner box (0 → 5). Answer correctly – the word moves up a box, and the pause until the next repetition grows. Make a mistake, and it slides back. This way, you learn exactly the words you need right now – and forget nothing.
Answers are checked on the server (no cheating), pronunciation – via speech synthesis (de-DE).
The higher the box, the longer the pause – until the word is learned
Your Training Games
Difficulty grows with your skills – from recognition to fluent writing.
Collect XP
Every correct answer earns points.
Keep the Streak
Practice every day and don't let the streak break.
Daily Goals
Set your daily number of new words and repetitions.
Beta — everything's free
While AstroLingua is in beta, everything is free. Paid plans will come later — we'll let you know in advance.
All Core Features
FreeFree in beta · no card
- Personal vocabulary and smart repetition (SRS)
- 12 types of exercises + A1–B2 grammar
- All 13 parts of DTZ: Hören, Lesen, Schreiben, Sprechen
- Azure neural voices for words and dialogues
- Practice exams and phrase training
AI Features
Also free in beta
- Live AI conversation partner for everyday situations
- Coach who corrects your every reply
- AI writing check from photo or text
- Picture description analysis (Sprechen Teil 2)
No card needed. Start now — while everything is open.
Beta — but the exam is real
Let's be honest: no organic reviews yet. Trust is built on other things.
The full DTZ format — Hören, Lesen, Schreiben, Sprechen: 13 parts and 3 mock exams of 70 minutes, just like the real thing.
Works offline: download words, audio and tests, practise with no signal — progress syncs when you're back online.
Built by a real company — MATTALNET GRUPP OÜ (Tallinn): a registered entity, support and real contacts, not an anonymous project.
Frequently Asked Questions
What is DTZ?
DTZ (Deutsch-Test für Zuwanderer) is a state German exam at A2–B1 level. It is taken for integration and often for a residence permit or citizenship. AstroLingua prepares for all 13 parts of the exam.
Is AstroLingua really free?
Yes. While AstroLingua is in beta, everything is free. We'll introduce paid plans later and always tell you in advance.
Is it just a set of words?
No. In addition to a large vocabulary with neural voiceovers, it offers full-fledged exercises for all 4 DTZ skills, grammar, practice exams, phrase training, and a live AI tutor who speaks and corrects you by voice.
What levels are supported?
From A1 to B1 (with a foundation for B2) — exactly what is needed for DTZ. Words and topics are broken down by level, and smart repetition selects what to learn right now.
What languages is the interface in?
The interface and word translations are available in several languages — choose yours upon registration, and it will be saved across all devices.
Does the app work offline?
Yes. In the mobile app, you can download words, audio, and citizenship test questions in advance — and practice without internet: on the subway, plane, or wherever there's no network. Progress syncs as soon as connection is restored.
Is there a mobile app?
We are releasing native apps for iPhone and Android. In the meantime, open AstroLingua directly in your phone's browser: everything works there too.
Ready to start?
Create a free account and onboard your first German words. An account is needed for learning — your vocabulary, progress, and streak belong to you.