KoemojiDownload on theApp Store

Learn Japanese from the podcasts you already love.

Pick a podcast episode or a file from your iPhone. Koemoji writes out the Japanese, puts a reading over every word and adds a translation in your language, so you can follow along line by line.

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No account needed · No transcript needed · Translations in 30 languages

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今日(kyō)は(wa)ちょっと(chotto)寒い(samui)ですね

It's a little cold today, isn't it?

そうですね(sō desu ne)、もう(mō)秋(aki)ですから

Yeah, it's already autumn after all.

温かい(atatakai)お茶(ocha)でも(demo)飲み(nomi)ましょうか

Shall we have some hot tea or something?

いいですね(ii desu ne)、行き(iki)ましょう

Sounds good, let's go.

1×

How it works

Three steps from episode to study session

No subtitles needed. Koemoji listens to the Japanese and writes it out for you.

  1. 1

    Add an episode

    Pick a Japanese podcast episode, or a video or audio file from your iPhone.

  2. 2

    Koemoji writes the Japanese

    AI transcribes the speech, puts a reading over each word and adds a translation.

  3. 3

    Study line by line

    Follow along as it plays, repeat a sentence, slow it down, and shadow it.

Features

Built for listening, not just reading

Everything in Koemoji is about hearing real Japanese and understanding it, one sentence at a time.

  • A reading over every word

    Romaji or hiragana above each word, so you can follow the sound before you can read the kanji.

  • Translation in your language

    Pick one of 30 languages. Every line gets a translation underneath, not just the hard ones.

  • Repeat one sentence

    Previous, Repeat and Next move sentence by sentence. Tap any line to play from there.

  • Sentence mode for shadowing

    One line at a time, with the player across the whole width. Listen, repeat, move on.

  • Slow it down

    Playback from 0.5× to 2×, so fast speech becomes something you can actually hear.

  • Podcasts, Photos or Files

    Pick any Japanese podcast episode, or bring your own recording, MP3, M4A, MP4 or MOV. No transcript needed.

A look inside

Simple on the outside, serious underneath

Home

Search your episodes

日本の朝ごはんを作ってみた

ゆるっと日本語ラジオ · 12:04

東京の下町をのんびり散歩

まいにち日本語 · 24:37

Voice memo 10-08

Photos · 03:12

初めての一人旅、京都編

Getting ready · 64%

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Home · everything you saved

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日本語 podcast

#42 秋の楽しみ方

ゆるっと日本語ラジオ · 12:04

朝のコーヒーと天気の話

まいにち日本語 · 08:51

Ep. 118 コンビニの新商品

Nihongo Picnic · 15:20

Koemoji writes out the Japanese, puts a reading over each word and adds a translation.

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Add · pick an episode or a file

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今日(kyō)は(wa)ちょっと(chotto)寒い(samui)ですね

It's a little cold today, isn't it?

そうですね(sō desu ne)、もう(mō)秋(aki)ですから

Yeah, it's already autumn after all.

温かい(atatakai)お茶(ocha)でも(demo)飲み(nomi)ましょうか

Shall we have some hot tea or something?

いいですね(ii desu ne)、行き(iki)ましょう

Sounds good, let's go.

1×

Play · the transcript follows the audio

Your language

Translations in 30 languages

Choose the language you speak when you first open Koemoji. Every line of the transcript is translated into it.

  • English
  • 简体中文
  • Bahasa Indonesia
  • 한국어
  • ภาษาไทย
  • 繁體中文
  • Tiếng Việt
  • Filipino
  • Bahasa Melayu
  • Español
  • हिन्दी
  • Français
  • Português
  • မြန်မာ
  • Русский
  • Deutsch
  • Монгол
  • සිංහල
  • नेपाली
  • Türkmençe
  • Italiano
  • বাংলা
  • العربية
  • Polski
  • ខ្មែរ
  • Oʻzbekcha
  • Türkçe
  • ລາວ
  • Nederlands
  • Українська

FAQ

Questions, answered

Is Koemoji free?
Yes. Koemoji is free to download and use, with no account needed. A paid plan with more AI transcription minutes is coming later.
What can I study?
Any Japanese podcast episode, plus videos and audio from your own iPhone: a recording from Photos, or an MP3, M4A, MP4 or MOV from Files. The episode does not need a transcript, because Koemoji writes one itself.
What does the transcript show?
Each Japanese line with a reading over every word (romaji or hiragana), and a translation in your language underneath. The current line follows the audio as it plays, and a tap on any line plays from there.
Which languages are the translations in?
You choose one of 30 languages when you first open the app, including English, Chinese, Indonesian, Korean, Thai, Vietnamese, Spanish, French, Portuguese and German. You can change it any time in Settings.
Does it work for complete beginners?
Yes. The reading over every word means you can follow along before you can read kanji, and sentence mode lets you listen to one line at a time, repeat it, and slow it down to half speed.
Is there an Android version?
Not yet. Koemoji is for iPhone first (iOS 26 or later). Follow us on Instagram to hear when more platforms arrive.

Koemoji is coming to the App Store.

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