日本語を育てる
JIVX
Stop studying Japanese. Start speaking it.
Start Practicing FreeYou understand Japanese. But can you produce it?
- You know the grammar rules but can't form sentences on the spot.
- You understand spoken Japanese but freeze when it's your turn to talk.
- You've studied for years but still can't hold a basic conversation.
- Your answer was correct, but the app marked it wrong because it expected one exact phrase.
Three steps. Every day.
Read the prompt
An everyday situation in English. Ordering coffee. Asking for directions. Apologizing to a coworker.
Write or speak in Japanese
Type with your keyboard or speak with your voice. No multiple choice. No word banks. Generate it yourself.
Get AI feedback instantly
AI evaluates your intent, grammar, vocabulary, and tone. There's no single correct answer — express yourself naturally.
Your path from first words to fluency
Five levels. 2,500 sentences. One journey.
First Words
Order coffee. Ask for directions. Introduce yourself.
Finding Your Voice
Share experiences. Express opinions. Make plans with friends.
Breaking Through
Discuss abstract topics. Navigate unfamiliar situations.
Speaking Naturally
Debate nuanced topics. Express complex emotions fluently.
Mastery
Say anything you think, the way a native would.
Your answer was right. The app just didn't know it.
Most apps match against one expected answer. JIVX understands what you meant.
京都に一度行ったことがあります
Expected: 京都に一回行ったことがあります
京都に一度行ったことがあります
Good use of the ~たことがある experience pattern! Grammar is solid. Consider using 一回 as a more conversational alternative to 一度 in casual speech.
See it in action
Tap play to hear native Japanese pronunciation.
I eat breakfast every morning.
Excellent work! Your sentence structure is correct and natural. You used the polite form consistently. Minor note: 朝ごはん is perfect here for everyday conversation.
毎朝、朝ごはんを食べます。
毎朝、朝ごはんを食べる。
Built for output, powered by AI
AI That Understands You
Japanese has countless ways to say the same thing. Our AI evaluates your intent, grammar, and vocabulary — not whether you matched an answer key.
Voice Input
Speak your answer naturally. AI transcribes and grades your spoken Japanese just like a typed answer.
Shadowing Practice
Listen to native pronunciation, record yourself, compare side by side. Train your ear and your mouth.
Furigana Toggle
Reading aids when you need them, hidden when you don’t. You control how much support you get.
Spaced Repetition
SM-2 algorithm schedules reviews at the optimal time. Sentences you struggle with come back sooner.
JLPT N5 through N1
6,000 sentences across all proficiency levels. Real daily situations — not textbook drills.
Passive Review Playlist
Listen to your sentences on repeat with ambient sounds — rain, ocean, temple bells. Review without lifting a finger.
Invite Friends, Earn More
Each friend you refer unlocks +5 extra sentences per day (up to +30). Both of you receive a Friendship Lantern for your gardens. Hit milestones for rare rewards: Sensei’s Scroll at 3 referrals, Golden Torii at 5. Visit and water each other’s gardens.
Grow a garden with every sentence you master
Complete sentences to earn water drops. Water your plants and watch them grow. Master sentences to earn kagi and open treasure chests for rare items. 52 collectible items across 5 rarity tiers.
52
collectible items
5
rarity tiers
4
seasons
Free. Actually free.
Free
No credit card. No trial. No catch.
- N5 level — 500 sentences
- 5 sentences per day
- AI grading
- Voice input
- Shadowing practice
- Passive review playlist
- Full garden system
- Invite friends for +5 daily sentences
Pro
For serious learners.
- Everything in Free
- N4 through N1 — 2,500 total sentences
- 50 sentences per day
- 7-day free trial
Questions
How does JIVX help me speak Japanese?
JIVX trains output: you read an English prompt and produce Japanese from memory using your keyboard or voice. This builds the same mental muscle you use in real conversation — generating language, not just recognizing it.
Why does JIVX use AI grading instead of answer matching?
Japanese has many valid ways to express the same idea. Traditional apps compare against one correct answer, which fails for a language this flexible. Our AI evaluates your intent, grammar accuracy, vocabulary choice, and tone — not whether you memorized a specific phrase.
What JLPT levels does JIVX cover?
N5 through N1. Each level covers everyday situations like ordering food, asking for directions, talking about work, and more. The free tier includes full N5 access. Paid unlocks N4 through N1.
Is JIVX really free?
Yes. The free tier gives you full access to N5 with AI grading, voice input, shadowing practice, and the garden system. It is not a trial. It is the complete app at the beginner level. No credit card required.
Can I practice speaking Japanese with JIVX?
Yes. Use voice input to speak your answer in Japanese. The AI transcribes your speech and grades it the same way it grades typed answers — evaluating grammar, vocabulary, and tone. You can also use shadowing to record yourself repeating native pronunciation.
What makes JIVX different from Duolingo or WaniKani?
Duolingo focuses on recognition — pick the right answer from a list. WaniKani teaches kanji reading. JIVX focuses on production: you generate Japanese from scratch, the way you would in a real conversation. No multiple choice. No word banks. Just you, forming sentences.
Your Japanese is ready to come out.
Start Practicing FreeFree forever on N5. No credit card required.