日本語 学び
NihonGO Manabi · Support
NihonGO Manabi is an intermediate Japanese course — one continuing story told across its books, and every word one tap from a card that explains it.
Write to us: joshuawamano@icloud.com
A real person reads every message. If you have found a mistake in the Japanese, please say which chapter and which sentence — those reports are read carefully and acted on.
No. There is no sign-up and nothing to log into. Open the app and the whole book is there.
The app and everything in it are free. There are no in-app purchases and no subscription. The one optional extra — having your own sentences corrected by an AI — runs on your own Claude API account with Anthropic, so anything it costs (a fraction of a US cent per corrected answer) is billed to you by them, never by us. It is clearly marked wherever it appears, and the book works completely without it.
Completely. Every chapter, every card and every audio file is installed with the app. That is why the download is large — it is a full textbook with native-speaker audio, and it is meant to work on a plane. The one exception is the optional AI sensei, which needs a connection.
Because the audio is real recordings, not synthesized on the fly, and all of it ships with the app so that nothing stops working when you lose signal. We think that trade is the right way round for a textbook.
Progress travels through your own private iCloud. Check that both devices are signed in to the same Apple ID and that iCloud Drive is on. Sync happens in the background and shortly after you leave the app, so give it a minute and reopen it. You can see the current state in ⚙ 設定 → データ → iCloud 同期, which shows when it last synced.
It is optional — the whole book works without it. In ⚙ 設定 → AI先生, tap Set up my AI sensei; the page that opens takes you through it. It takes about ten minutes, once, and you need an email address and a credit card.
sk-ant-.A Claude subscription is not the same thing. A Pro subscription is for chatting with Claude at claude.ai, and it does not cover apps like Manabi. They use the Claude API, which is billed separately, in advance, by use — Anthropic explains the difference. Max, Ultra and Team plans include a monthly API credit that you can use instead — how to claim it.
A correction costs a fraction of a US cent; the app shows the current figure under ⚙ 設定 → AI先生 → モデル. Your key is kept in Apple’s Keychain on your own devices, never sent to us, and you can disconnect at any time from the same place. The AI sensei needs an internet connection.
Manabi is an independent app. It is not made, endorsed or sponsored by Anthropic. Claude is a trademark of Anthropic.
Every reset in the app is listed in one place, with exactly what it clears, in ⚙ 設定 → データ → リセット. Each one takes you to the page that owns that data, so you can see what you are about to lose before you do it.
It checks shape, stroke order, direction, and missing or extra strokes, and it is deliberately forgiving about neatness. If it consistently rejects a character you are sure of, please write to us with the character — that is a bug worth fixing, and it is the kind of report that gets acted on.
iPhone, iPad, and Mac (Apple silicon, via Designed for iPad). iPhone is portrait; iPad is landscape, because the two-pane layout — the text on one side, the card you tapped on the other — is the point of it.
We collect nothing. The full policy is at privacy.html.