KarlLang - Vocab Trainer

Content rating
Everyone
10+
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Content rating
Everyone
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About this app

KarlLang is a typing-first vocabulary trainer for adult learners.

Instead of tapping multiple choice options, you type every answer yourself. This helps build real recall, not just passive recognition.

Learn across multiple languages including German, Japanese, Chinese, Spanish, French, and more.

Features:
• Typing, copy, card, cram, and Word Drop training modes
• Spaced repetition (SRS) review system
• Typing hints and focused repetition training
• Difficult word and bookmark review
• Shareable learning summary cards
• CEFR-based vocabulary (A1–B2)

KarlLang is designed for learners who want to actively train memory and build real output skills through typing and repetition.
Updated on
May 13, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity
Data is encrypted in transit
Data can’t be deleted

What’s new

* New Word Drop recall training mode
* Improved difficult word training
* Added typing hints and smoother input flow
* Added shareable learning summary cards
* Refined UI layout and training flow
* Improved iOS and Android stability
Content rating
Everyone
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App support

About the developer
박성철
karllang.app@gmail.com
South Korea