Ruby Messenger

Ruby Messenger

Write in Japanese.Understand every word.

A private iOS messenger with tap-to-read furigana, simple Japanese explanations, and a vocabulary list built from real conversations.

Coming soon on theApp Store Available on iPhone

Everything you need to learn through real conversations

Tap any word See furigana instantly.
Simple explanations Clear definitions in simple Japanese.
Vocabulary that grows Save words from chats and review later.
9:41
Hana Online
今日は天気がいいですね！
22:19
そうですね。公園に行きました。
2:19
私は誕生日たんじょうびに美味しいケーキを食べました。
6:19
いいなあ！美味おいしそうですね。
10:19
来週、図書館としょかんで一緒いっしょに勉強べんきょうしませんか？
14:19
駅の前で会いましょう。
14:19
今日は楽しかったです！
0:26
本当ですか？すごいですね！
0:26
Message

Every message becomes readable.

Ruby Messenger helps you understand Japanese in real conversations.

1

Tap kanji for furigana

Tap any word with kanji to instantly see how it's read.

今日は天気がいいですね！22:19
天気てんき
天気てんき
Meaning空のようす。晴れや雨など。
2

See words in context

Understand new words with the original sentence.

私は誕生日に美味しいケーキを食べました。6:19
誕生日たんじょうび
誕生日たんじょうび
Meaning生まれた日。バースデー。
Context私は誕生日に美味しいケーキを食べました。
Saved
3

Correct readings together

Native speakers can correct readings so everyone learns with confidence.

来週、図書館で一緒に勉強しませんか？14:19
勉強べんきょう
勉強べんきょう
Reading corrected
べんきよう べんきょう
Takuya corrected the reading

Ruby MessengerReal Japanese. Real understanding.

Your vocabulary, saved from real life.

Every word you tap in a chat can be saved to your personal list — with its reading, meaning, and the original sentence for context you'll never forget.

  • Save a word from a chat One tap, and it's yours.
  • Keep the original sentence Learn in context. Remember more.
  • Mark words as learned Track your progress, your way.
9:41

Vocabulary

Search words
  • 食べるたべる

    私は誕生日に美味しいケーキを食べました。

    to eat

    Saved today

  • 誕生日たんじょうび

    私は誕生日に美味しいケーキを食べました。

    birthday

    Saved today

  • 図書館としょかん

    来週、図書館で一緒に勉強しませんか？

    library

    Saved yesterday

Chats Vocabulary Settings

Private by design, open for learning.

Ruby Messenger helps you learn Japanese in real conversations you care about.

  • Invite links only

    Join chats through a unique invite link. You stay in control of who you connect with.

  • No public user directory

    We don't list users or profiles. Your conversations stay between you.

  • Made for learners, families, and tandem partners

    Designed to support Japanese learners and the people who help them.

Coming soon on the App Store

We're putting the finishing touches on Ruby Messenger. Stay tuned — something meaningful is coming.

Coming soon on theApp Store