Nihongo Flow — questions and answers

A Japanese learning app for iPhone and the web. It teaches the Japanese people actually speak: an AI sensei to talk to, casual and polite forms side by side, five immersion worlds, and spaced repetition for vocabulary — from JLPT N5 to N1, with explanations in 10 languages.

Yes. The free plan never expires and needs no credit card: vocabulary, kana, grammar and review, all immersion worlds and AI personalities, 5 AI messages a day (16+) and energy for 15 answers that refills by itself. Premium removes the limits.

€7.99 a month or €89.99 a year (about €7.50 a month), with 3 days free to try. Ultra Maxx adds a live voice call with Sensei for €34.99 a month or €349.99 a year. App Store prices can differ by country. All plans

N5 to N1. Grammar comes in 52 lessons: 16 at N5, 12 at N4, 10 at N3, 8 at N2 and 6 at N1, so it is deepest for beginners and lower-intermediate learners. For N2–N1 grammar, a specialist like Bunpro goes much further.

Yes, two ways. The AI tutor has three personalities — friendly teacher, anime character, business mentor — and chats with you in Japanese (from age 16). With Ultra Maxx you can also call Sun-Sensei and talk out loud for up to 15 minutes a day: Sensei listens, answers in a natural voice and can be interrupted any time.

That's the core idea. Lessons show the textbook sentence next to how people actually say it, labelled casual, polite or business. Example: textbooks teach あなた for “you”; in Japan people say the name plus さん.

Not in Google Play yet. On Android, open the web app in your browser at nihongo-flow.app/app — same app, same account. On iPhone, get it from the App Store.

Ten: English, German, Japanese, Arabic, Chinese (Simplified), Turkish, Hindi, Portuguese (Brazil), Indonesian and Korean.

Vocabulary uses spaced repetition (the SM-2 algorithm): each word comes back right before you would forget it. The heatmap shows how firmly each word sits, from seed to fruit.

All hiragana and katakana with a writing drill, plus the N5 kanji. Handwriting practice is in Premium. Beyond N5, kanji come with the vocabulary rather than as a separate kanji course — if kanji is your main goal, WaniKani is the specialist.

Yes. Teachers create classes, assign homework and word lists and see their students' progress. Nihongo Flow is used in classes at a language school and a university in Germany. For school plans, contact us on Discord or via the address in the imprint.

No. Nihongo Flow (nihongo-flow.app) is a separate app from a different developer.

An independent developer in Germany. The AI features run on Claude by Anthropic; they are available from age 16 and only with consent, and every AI answer can be reported in the app. The app is for ages 13 and up.

Any time. On iPhone: in your Apple ID subscription settings. On the web, purchases go through our reseller Lemon Squeezy; cancel from the link in your receipt email. Cancel during the 3-day trial and you pay nothing.