Grammar Index - International

The Grammar Index — International helps you master English grammar with the whole app in your own language. Clear explanations, real examples, quizzes and spaced-repetition practice — translated into 34 languages, so the grammar finally makes sense.

LEARN IN YOUR LANGUAGE
• The interface and every grammar explanation in 34 languages — including Arabic, Bengali, Chinese (and Cantonese), Czech, Danish, Dutch, Persian/ Farsi, Finnish, French, German, Greek, Gujarati, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Punjabi, Romanian, Russian, Somali, Spanish, Swedish, Thai, Turkish, Ukrainian, Urdu, Vietnamese — and English.
• The example sentences stay in English — because that's the English you're learning to read and write.
• Switch language any time from the globe; everything re-translates instantly.


WHAT IT TEACHES
• Over 300 English grammar topics — each with a clear definition, right examples, and wrong examples with the mistake explained.
• A built-in quiz that draws from what you've studied and re-rolls every time, so practice reinforces rather than repeats.
• A guided Learning Path that takes you level by level.
• Spaced-repetition Drill — flashcards that resurface at just the right moment to move grammar into long-term memory.
• A Today dashboard with a daily streak, a goal, and a "continue where you left off" card.

HEAR IT TOO
• Read-aloud narration on titles, definitions and examples in a clear English voice — great for pronunciation and for learners who take more in by ear.

PRIVATE BY DEFAULT
• Everything saves on your own device — no account, no tracking, no sign-up. Works offline.

TRY IT FREE
• Explore a free preview of topics, then unlock the full library with a single one-time payment — no subscriptions.

The Grammar Index — International: English grammar, in your language.