This page is for the learner with N5 foundations who has noticed the gap: you can introduce yourself and order food, but the notice taped to your building door, the station announcement, and the small talk at work still slide past you. That gap is N4 territory, and it responds better to contextual practice than to another static list.
The current web version carries 260 N4-level items: 146 vocabulary words, 49 kanji taught through words you already know, 17 real-world signs, 35 buildable sentences, and 13 reading passages — the missed-delivery slip, the pharmacist's instructions, the typhoon-day announcement. Grammar is tracked as 20 patterns spanning N5 through N3, from 〜てください to 〜たことがあります and 〜なければなりません — and the content now continues past N4 into an N3 tranche, so the ladder keeps going.
Every item is banded honestly. An N4 word counts toward N4, never toward your N5 numbers — so the progress you see is the progress you have. How the levels differ is laid out in the JLPT levels guide.
There is no placement exam. New material arrives as adaptive probes: answer correctly and the item is credited and scheduled far out; miss it and it becomes the lesson, with no penalty. If you arrive mid-journey — from a class, a textbook, or years of half-remembered study — the app discovers what you know by asking, which is faster than any self-assessment form and kinder than starting over.
A grammar pattern in Yokoso is only counted as "demonstrated" after a transfer test: once you have used a pattern correctly in a couple of contexts, the app names it, then immediately tests it on a sentence you have never studied. Getting 〜ないでください right on a brand-new sentence is evidence; repeating a memorized one is not. The sentences added with the N4 expansion also went through an ambiguity review, so a reasonable correct answer — like using を where が also works with 〜たいです — is accepted rather than marked wrong.
To be clear about scope: this supplements textbooks, classes, listening practice, and mock exams. It does not replace complete JLPT exam preparation.
N4 is where Japanese starts doing errands. The vocabulary covers the clinic (受付, 保険, 具合), the office (会議, 資料, 締め切り), transport (乗り換え, 終電, 精算), weather that changes plans (台風, 梅雨), and the social glue (連絡, 相談, 約束). Errand Runs — a daily session shaped like an actual day in town, konbini to station to work to izakaya — is built entirely from material you already know, so due reviews get done inside a story. The signs and numbers and prices guides preview two slices of this in the wild.
A read-only WaniKani import carries your kanji and vocabulary progress over and re-syncs daily, and a Bunpro import brings in recent grammar history (Bunpro's API only exposes recent items — the limits are documented honestly on that page). Yokoso is independent of both services and endorsed by neither.
Also on the App Store. The store version updates on Apple's review schedule, so the newest content sometimes reaches the web app first.
Yes — every learning feature, permanently. No ads, no streaks, no locked lessons. Optional supporter contributions fund development and unlock nothing.
No. JLPT is administered by the Japan Foundation and JEES. Yokoso tracks your coverage against community-estimated level targets and says so plainly.
No. It is the daily-practice layer: vocabulary, kanji, grammar transfer, and applied reading, scheduled by spaced repetition. Pair it with a textbook's structure and real mock exams as the test approaches.
Yes — WaniKani fully with daily re-sync, Bunpro within its recent-history API limits. Both imports are read-only; Yokoso never writes to either service.
Yes. It is an offline-capable web app and iOS app; progress lives on your device and syncs across devices when you choose.