Learn a language at a pace that keeps growing

KaigoAI is an AI language-learning app for learning English, German, Spanish, French and Chinese. It combines spaced-repetition vocabulary review, dictation, voice conversation with an AI partner and head-to-head word duels, with a daily goal that grows only as fast as you do.

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Languages you can learn

Study one or several at once. Each language keeps its own words, level and progress.

How KaigoAI works

Words that come back at the right time

Save a word and KaigoAI generates a plain-English meaning and a natural example sentence. Spaced repetition then brings the word back just before you would forget it.

Dictation

Listen to a short AI-written paragraph at your level and type what you hear. You get a word-by-word diff that shows what was right, wrong or missing.

Talk to an AI partner

Hold the button and speak. The partner answers out loud, stays close to the words you are practising and gently repeats corrections back to you.

A comfort zone that grows

You start with a small daily target for minutes and new words. When you hit it consistently, the target rises a little. Extra words you add past today's limit are queued, not lost.

Word duels

Challenge a friend to ten vocabulary questions, ten seconds each, with the same words for both of you.

Guides

• Language levels explained: CEFR A1–C2 and HSK
• How spaced repetition works, and why it beats cramming
• How to learn a language in 15 minutes a day

Common questions

What is KaigoAI?

KaigoAI is an AI language-learning app for learning English, German, Spanish, French and Chinese. It combines spaced-repetition vocabulary review, dictation, voice conversation with an AI partner and head-to-head word duels, with a daily goal that grows only as fast as you do.

Which languages can I learn with KaigoAI?

English, German, Spanish, French and Chinese. You can study several at the same time and switch between them from your profile, where each language keeps its own words, level and progress.

How much time do I need each day?

You choose a starting pace: Gentle is about 5 minutes and 3 new words a day, Steady about 15 minutes and 6 new words, and Ambitious about 30 minutes and 10 new words. The target grows gradually as you keep hitting it.

What happens if I add more words than my daily limit?

Nothing is lost. Words past today's comfort-zone limit are saved in a queue and become active as your limit grows, so you are never punished for being enthusiastic.

All questions