Meet one new word in a complete sentence
New cards follow an ordered n+1 curriculum built to introduce one target word at each step.
Tsugi
Learn Japanese words through complete sentences. Tsugi follows a hand-curated n+1 order: each new sentence introduces one target word, then spaced repetition brings the words you need to review back at the right time.
Free download · Optional Premium upgrade
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Real Japanese, One Step Ahead
Learn from complete Japanese sentences instead of isolated word lists. Tsugi keeps each new card just beyond your current level, so every review adds something useful without becoming overwhelming.
Read, Listen, Recall
Interactive furigana, native audio, and simple recall controls turn every sentence into focused reading and listening practice, with help available when you need it.
See What’s Sticking
Track review momentum, retention, active sentences, and mastery across memory tiers, so you can see your Japanese vocabulary growing over time.
MADE FOR THE WAY YOU STUDY
Tsugi, in detail.
Learning your next Japanese word in a sentence you can follow.
iPhone, iPad & Mac
Free
Free to download
Review what is due before moving on
Short sessions put due reviews first, then introduce new material.
Listen, look up, and keep reading
Hear the sentence, tap a Japanese word for its dictionary meaning, and choose romaji or unassisted Japanese.
Premium
Optional in-app upgrade
Read with furigana when you need it
Add furigana above the kanji so you can follow the Japanese sentence without replacing it with romaji.
Give each word a visual memory
Turn on cosy illustrated flashcards for another way to remember the target vocabulary.
Unpack the Japanese in front of you
Open a sentence breakdown to inspect words, readings and grammar patterns.
Learn grammar as it appears
Show a short grammar lesson the first time a new pattern comes up during review.
See more than a study streak
Track daily activity for free.
Pick up on another device
Keep learning progress and review history in sync through iCloud.