Nihongo Flow
Learn Japanese with AI Sensei
Only for iPhone
Free · In‑App Purchases
iPhone
Nihongo Flow teaches you hiragana, katakana and kanji, builds a vocabulary that sticks, and shows you how Japanese sentences work. A few minutes a day is enough. Explanations are in English or German.
VOCABULARY THAT STICKS
• Your learning path takes you through the most common words: 2,000, 4,000 or more than 5,800, you choose.
• Every word comes back just before you would forget it (spaced repetition).
• Practice with flashcards, multiple choice or romaji typing, or say the word out loud and Apple speech recognition checks your pronunciation.
• The memory heatmap shows which words are solid and which are fading.
HIRAGANA, KATAKANA, KANJI
• Hiragana and katakana with all basic and voiced characters, plus 40 N5 kanji with on and kun readings. Quizzes and typing drills in rounds of 10.
• Handwriting (Premium): write kana and kanji with your finger and get an instant check of stroke count and size.
SENTENCES AND GRAMMAR
• Grammar from N5 to N1: 52 lessons and a level check for your grammar level.
• Sentence Blocks: see how a sentence snaps together from colored blocks, build your own from words you've learned, and stack verb endings from polite to passive.
MORE PATHS
• Baby Path: picture first, then the word, the way toddlers learn.
• Topic Path: nature, seasons, home and more.
• Slang & Colloquial: how people in Japan really talk, with the textbook version for comparison. Includes crude expressions, clearly marked.
• Business Japanese & Keigo: 463 forms and terms in 29 chapters.
• Immersion: short texts on anime, travel, daily life, news and business. Tap a word to add it to your vocabulary.
• Hokkaidō Densetsu (Premium): travel across Hokkaidō in 18 stations, with culture cards, Ainu culture, a collector's album and a dice race against rivals.
SENSEI: AI FEATURES FOR AGES 16+
• Chat with Sensei in Japanese or English, as a friendly teacher, an anime character or a business mentor.
• Voice call with Sensei (Ultra Maxx): you speak, Sensei listens and answers out loud.
• Plus "Teacher explains", example sentences, the Sentence Puzzle, an AI check for your sentences, text correction and "Your level today".
• AI features use Claude by Anthropic. They are available from age 16, and only after you agree once. You can withdraw consent anytime in Settings, and you can report any AI answer. Everything else works without AI.
KEEP GOING
Streaks, levels and XP, "What to learn today?", a Japanese proverb every day and your own avatar. No ads.
Speak Japanese? Settings > Course also offers a German course with a Japanese interface.
WITHOUT A SUBSCRIPTION OR WITH PREMIUM
You need an account with email and password. Without a subscription you learn with energy: each answer uses one point, and energy refills over time. AI features have a daily limit.
"Nihongo Flow Premium" gives you unlimited energy, all AI features with no daily limit, handwriting practice and Hokkaidō Densetsu. "Nihongo Flow Ultra Maxx" is Premium plus the voice call with Sensei, up to 15 minutes a day.
SUBSCRIPTION TERMS
• "Nihongo Flow Premium" is an auto-renewable subscription, billed monthly (1 month) or yearly (1 year). Prices vary by country and are shown in the app before you buy.
• You can try Premium free for 3 days, once per Apple Account. Unless you cancel at least 24 hours before the trial ends, it converts to the plan you chose.
• Payment is charged to your Apple Account when you confirm the purchase or, with a trial, when the trial ends.
• The subscription renews automatically for another month or year unless you cancel at least 24 hours before the end of the current period. Renewal is charged within the 24 hours before the period ends.
• You can manage and cancel it anytime in your Apple Account settings.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://nihongo-flow.app/privacy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Ready for iPhone Duo: opened up, the app uses the big screen. Tracing gets a bigger square with the stroke order, the kana table shows the details right beside it, and in reviews the answer appears next to the card. Half open like a small laptop, the writing square lies flat on the table. Also, labels no longer break in the middle of a word.
The developer, LEONARD SCHAPER, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- LEONARD SCHAPER
- Size
- 96 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later.
- iPhone
- Languages
English and 9 more
- English, Arabic, German, Hindi, Indonesian, Japanese, Korean, Portuguese, Simplified Chinese, Turkish
- Age Rating
13+
- 13+
- This app is rated 13+ with content restrictions.
Some content may be rated higher, and may therefore be restricted and managed by the developer through in-app controls. - In-App Controls
Age Assurance
Infrequent
Realistic Violence
Profanity or Crude Humor
Mature or Suggestive Themes
Horror/Fear Themes
Medical Treatment information
Alcohol, Tobacco, Drug Use or References
Sexual Content or Nudity
Guns or Other Weapons
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Nihongo Flow Ultra Maxx $299.99
- Nihongo Flow Ultra Maxx $29.99
- Nihongo Flow Premium (Yearly) $79.99
- Nihongo Flow Premium (Monthly) $6.99
- Copyright
- © 2026 Leonard Schaper
