Three writing systems
One sentence can mix hiragana, katakana and kanji. FluenSi shows romaji under Japanese words and translations, so you can start learning words straight away, and keep the kanji in front of you until you can read it.
Japanese Β· ζ₯ζ¬θͺ
Learn Japanese vocabulary by speaking it
Japanese vocabulary is a long climb: new scripts, politeness levels and verbs that change shape in a dozen ways. Most learners can recognise far more than they can say, because apps test recognition, not production.
FluenSi is built around saying things. Save the Japanese words you need, with romaji, verb forms and example sentences filled in for you. Then each review asks you to use a word in a sentence of your own, out loud, and shows you how a native speaker would say it.
Launching soon on iOS & Android. Links go live at release.
ι£γΉγ taberu
verb everyday
- Translations
- to eat
- Polite form
- ι£γΉγΎγ (tabemasu)
- Past tense
- ι£γΉγ (tabeta)
- Synonyms
- ε¬γδΈγγ (meshiagaru, honorific)
Forms
- negative
- ι£γΉγͺγ
- te-form
- ι£γΉγ¦
- polite past
- ι£γΉγΎγγ
- potential
- ι£γΉγγγ
- volitional
- ι£γΉγγ
ζ―ζγγ³γι£γΉγΎγγ
I eat bread every morning.
The hard part
What makes Japanese vocabulary tricky
And how speaking your own sentences gets you past it.
Politeness is built into the verb
ι£γΉγ and ι£γΉγΎγ mean the same thing, at different levels of politeness, and using the wrong one with a stranger or a friend sounds odd. Each saved verb shows its plain and polite forms, and sentence feedback flags a mismatched register.
Verbs change form, not person
Japanese verbs don't change for I, you or they. They change for negative, past, "and", "can" and "let's". The forms table for each verb lays these out, and speaking them in your own sentences is what makes them automatic.
Particles and word order
γ―, γ, γ and γ« carry the grammar, and the verb comes last. These are hard to learn from word lists alone. Saying full sentences, and seeing a corrected version when a particle is off, builds the instinct.
How it works
Four steps to fluency
1
Translate and save
Speak or type a word or phrase, get an instant translation, then tap to save it as a focus word.
2
Get the full picture
FluenSi instantly analyses it: meaning, part of speech, full conjugation table and real example sentences.
3
Review by speaking, not guessing
At the right moment, say a fresh sentence with the word, never the same one twice.
4
Get feedback that sharpens you
After each review, your sentences are graded, with suggested edits to improve them.
New to Japanese?
Turn on Beginner mode and reviews become a quick multiple-choice quiz while you learn your first words. Once you know about 100, FluenSi suggests switching to speaking your own sentences.
Japanese FAQ
Learning Japanese with FluenSi
Do I need to read hiragana before using FluenSi?
No. Japanese words and translations come with romaji, so you can save, hear and practise words from day one. Learning kana alongside will help, and seeing the script next to the romaji every day speeds it up.
Can I speak to FluenSi in Japanese?
Yes. Reviews use your phone's speech recognition in Japanese, so you say your sentence out loud and it's written out for you. You can also switch to typing.
Does FluenSi show kanji readings?
Words written in kanji show a romanised reading. You can add your own notes to any word, for example a mnemonic for the kanji.
Is FluenSi good for JLPT preparation?
It's built for using vocabulary rather than for a test syllabus, but saving the words from your JLPT lists and practising them in spoken sentences is a strong way to make them stick.
Start speaking Japanese
Try every feature free for 24 hours, then pick the plan that suits you.
Launching soon on iOS & Android. Links go live at release.