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Status: In development since 2026-10EducationGermanOn-device AI

The Android app is in internal testing on Google Play; the public listing follows Google's review. The course, grammar, exam guides and stories are already free to read on the website in twelve languages.

Eszett

Your German tutor, on your phone, offline

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Listing updated

Eszett cover

About

Eszett is a German tutor that lives on your phone. A 3B language model trained to teach German runs on the device itself: it explains, corrects your sentences, plays the other person in everyday scenes – the bakery, the Bürgeramt, a job interview – and rates how you speak, the way an examiner would. A 56-week course from A1 to C2 built from the official exam syllabi, 71 grammar rules, 58 scenes, stories from Grimm to Kafka, and mock oral exams for Goethe, telc, DTZ, TestDaF and DSH. Nothing you type leaves the phone; there is no analytics and no advertising. Free for a week, then one purchase – no subscription – and a pay-it-forward pool so those who can pay fund those who cannot.

Key Features

1

A tutor on the phone

A language model trained to teach German runs on the device – no internet, nothing leaves the phone.

2

Course A1 to C2

56 weeks with grammar cards, words, scenes, reading, listening, writing and a check, built from the exam syllabi.

3

Speak and be rated

One minute of free speech a day, real-life scenes and mock oral exams for Goethe, telc, TestDaF and DSH.

4

Fair pricing

Free for a week, then one purchase. No subscription. Pay it forward for a learner who cannot afford it.

Follow Eszett's development

Learn German A1–C2 with a tutor that runs on your phone: grammar, real conversations, speaking practice and mock exams – offline, in 12 languages.

In development — not yet available

Follow development

Want to know when it ships? Email us to be notified (hello@lamplitlabs.com)

The link opens your mail app with the subject pre-filled. Send the email and we'll reply once when Eszett launches — no newsletter, no other emails.

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