The core course closes its grammar at twenty frames — after Lesson 9, growth is pure vocabulary. Boosters are how that growth ships: small, themed vocabulary packs you add only when your trip actually needs one. Each pack is roughly 15–30 nouns plus a few recognize-only phrases, dropped straight into frames you already own — no new grammar, ever. Same format as the lessons: audio on every item, tap-to-reveal, and a small Anki deck.
Shipped packs are listed below — take them in any order, whenever the trip calls.
Coming next
| Booster | What will be in it |
|---|---|
| Tax-free shopping | the passport-linked exemption, the sealed-bag rule, Menzei, onegaishimasu |
Later, by demand: izakaya & nightlife (kanpai, warikan, nomihoudai) · festivals · outdoors & trail · pharmacy, deeper · traveling with kids · accessibility · business-lite.
Meanwhile, don’t wait
The noun layer is open by design. Harvest any word in the field with Lesson 2’s Kore wa nihongo de nan desu ka — and the AI translator will build any themed sentence you need from pieces you already own, booster or no booster.