KLUG
Learn German in German.
KLUG teaches German the way an immersion classroom does, entirely in German, with more than 12,700 exercises and on-device AI conversations with Fritzi the fox. It is built for iPhone on iOS 26, in English and German. Free to start, with an optional subscription for full access.
Last updated 19 July 2026
Stop translating. Start thinking.
KLUG keeps you inside the language, so German stops being a thing you decode and starts being a thing you do.
German, in German
No translation crutch. From the first lesson you learn to read, hear, and think in the language itself.
12,700+ exercises
A deep, structured path from first words to real conversation, with plenty of practice along the way.
Talk with Fritzi
On-device AI conversations with Fritzi the fox let you practise speaking and writing, with no audience and no judgement.
Built for iPhone
A focused, handcrafted interface made for iOS 26, in English and German.
Fits your day
Short sessions for a commute, longer ones when you have the time and the focus.
No ads, no tracking
Your progress stays yours. KLUG does not run ads or track you.
Free to start. Optional full access: 7.99 EUR per month or 59.99 EUR per year.
Immersion, by hand.
KLUG vs a typical language app
Only points that can be verified from the App Store listing and the app itself.
| Capability | KLUG | Typical language app |
|---|---|---|
| Taught in the target language | Yes, German in German | Often translation-based |
| AI conversation practice | Yes, on device | Sometimes, in the cloud |
| Number of exercises | 12,700+ | Varies |
| Ads | None | Common |
| Tracking and analytics | None | Common |
| Free to start | Yes | Often |
| Price for full access | 7.99 EUR / month or 59.99 EUR / year | Varies |
Questions, answered.
Is KLUG free?
KLUG is free to download and start. Full access is an optional subscription, priced at 7.99 EUR per month or 59.99 EUR per year.
What does "German in German" mean?
Lessons are taught in German itself, without leaning on translations, so you learn to think in the language rather than translating in your head.
How many exercises does KLUG have?
More than 12,700 exercises, arranged as a structured path from first words toward real fluency.
Who is Fritzi?
Fritzi is a fox you can hold AI conversations with to practise German. The conversations run on your device.
Which devices and languages does KLUG support?
KLUG runs on iPhone with iOS 26 or later, and its interface is available in English and German.
Does KLUG show ads or track me?
No. KLUG has no ads and no tracking.
Do I have to subscribe to try KLUG?
No. You can start for free. The subscription only unlocks full access.